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公开(公告)号:US20190071883A1
公开(公告)日:2019-03-07
申请号:US16085331
申请日:2017-02-23
摘要: A scaffold board (10) of extruded thermoplastic material. The board (10) includes a substantially rectangular outer profile and a plurality of strengtheners (20). The substantially rectangular outer profile is defined by a top wall (12), a bottom wall (14) and a pair of side walls (16, 18). The plurality of strengtheners (20) each extend between an inner surface of the top wall and an inner surface of the bottom wall. Each of the strengtheners have a middle part (20c), a pair of top parts (20a, 20b), and a pair of bottom parts (20d, 20e). The middle part (20c) is oriented normally to the plane of the top wall (12) and the bottom wall (14). The pair of top parts (20a, 20b) each extend outwardly from a top of the middle part (20c) to the inner surface of the top wall (12) in substantially equal and opposite directions respectively. The pair of bottom parts (20d, 20e) each extend outwardly from a bottom of the middle part (20c) to the inner surface of the bottom wall (14) in substantially equal and opposite angles.