公开(公告)号：US06330841B1

公开(公告)日：2001-12-18

申请号：US09525091

申请日：2000-03-14

申请人： Albert Baumgartner ,  Richard Sahli ,  Daniel Gasser ,  Paul Muller ,  Walter Untersander

发明人： Albert Baumgartner ,  Richard Sahli ,  Daniel Gasser ,  Paul Muller ,  Walter Untersander

IPC分类号： B25B2310

CPC分类号： B23P19/006 ,  B25B23/10

摘要： A screw holder mountable on a drive unit having a tubular passage with two axially-aligned sections, each provided with locking and centering elements, such that a screw inserted into such holder can initially only penetrate until the screw head is reliably held and suspended in the first section by the locking elements. The force of the centering and locking elements upon the screw head is overcome when the apparatus is placed on the screw location and an engagement tool coupled to a drive shaft is brought into driving engagement with the screw head, which driving movement forces the locking elements radially outward in response to the axial load upon the screw head and the passage of the screw head therethrough. After the screw head passes through the first section within the tubular passage, the screw shaft is engaged by the centering elements of the second section. The centering elements of the second section are then also forced back as the head of the screw passes therethrough.

摘要翻译： 一种安装在驱动单元上的螺钉固定件，其具有带有两个轴向对准部分的管状通道，每个管状通道具有锁定和定心元件，使得插入该保持器的螺钉最初只能穿透直到螺钉头被可靠地保持并悬挂在 第一部分由锁定元件。 当将装置放置在螺钉位置上时，定心和锁定元件在螺钉头上的力被克服，并且联接到驱动轴的接合工具与螺钉头进行驱动接合，该驱动运动迫使锁定元件径向 响应于螺钉头上的轴向负载和螺钉头通过其而向外。 在螺钉头经过管状通道中的第一部分之后，螺杆轴由第二部分的定心元件接合。 然后当螺钉的头部穿过其中时，第二部分的定心元件也被迫返回。