公开(公告)号：EP1404492A1

公开(公告)日：2004-04-07

申请号：EP01944867.9

申请日：2001-07-12

申请人： Synthes AG Chur

发明人： APPENZELLER, Andreas ,  RUPP, Stephan ,  MARK, Romano

IPC分类号： B25B23/10

CPC分类号： B25B23/108

摘要： The invention relates to a screwdriver with a screw holder, comprising: A) a shaft (2) that can be connected to driving means (11) and having a longitudinal axis (3) and a front shaft segment (9), which can be inserted into an appropriate cavity for the screwdriver located on a screw head; B) a spring element (6) arranged in the front shaft part (9), which is elastically deformable crosswise in relation to the longitudinal axis (3), a fixed segment (12) that can be connected to the shaft (2) and at least one elastic segment (13), wherein C) the fixed segment (12) of the spring element (6)is fixed in a bore (7) which penetrates from the front face (18) of the shaft (2) into the front shaft segment (9) and E) the bore (7) has a bore axis (17) forming a 90° > α > 0° angle with the longitudinal axis (3), whereby the spring element can be deformed in a relatively considerable manner and strong retaining force is exerted upon the screw head.