公开(公告)号：US3563580A

公开(公告)日：1971-02-16

申请号：US3563580D

申请日：1968-09-11

申请人： ANTHONY FREDERICK BLACK

发明人： BLACK ANTHONY FREDERICK

IPC分类号： E04B1/19 ,  E04H12/10 ,  F16B9/02

CPC分类号： E04B1/19 ,  E04B1/1912 ,  E04B2001/1915 ,  E04B2001/1918 ,  E04B2001/1927 ,  E04B2001/1933 ,  E04B2001/1963 ,  E04B2001/1978 ,  E04B2001/1984 ,  E04B2001/1987 ,  Y10T403/343 ,  Y10T403/347

摘要： A jointing member for limbs of a frame is in the form of a hollow tapered unit open at its wider end, comprising more than two flat wall surfaces each inclined to each neighboring flat wall surface by an angle differing substantially from 90*, and some of said wall surfaces being apertured to receive bolting means. The member may be shaped as a truncated pyramid. In setting up a frame a flattened end of a frame limb is held between facing wall surfaces of two of said jointing members, by bolting means passing through the jointing members and the frame limb.