公开(公告)号：EP1539429A1

公开(公告)日：2005-06-15

申请号：EP03736420.5

申请日：2003-04-25

申请人： Power Bridge (Singapore) Pte. Ltd.

发明人： Yap, Wang Han

IPC分类号： B25B13/46

CPC分类号： B25B13/16 ,  B25B13/28 ,  B25B13/46

摘要： The invention discloses a new and inventive adjustable wrench or spanner. It comprises essentially an elongated handle element (1) with a convex urging portion (11) at one end, an upper jaw element (2) with a concave urging portion (21), a lower jaw element (4) with a protrusion portion (44) and a ratchet assembly (3). The upper jaw element (2) is movable with the assistance of the two engaging urging portions (11, 21) and the lower jaw element (4) is adjustable with the assistance of the ratchet assembly (3). Two jaw portions (22, 41) are operable in tightening or loosening positions, without having to b disengaged from a hexagonal nut. When the jaw portions (22, 41) are opened in a loosening position, gripping edges (23, 42) of the jaw portions (22, 41) are allowed to shift from one width across flats (fl) to another width across flats (f2).