公开(公告)号：US20210245339A1

公开(公告)日：2021-08-12

申请号：US17251102

申请日：2019-06-14

申请人： Wera Werkzeuge GmbH

发明人： Michael Abel

IPC分类号： B25B23/142 ,  A61B17/88 ,  B25B23/14 ,  B25B23/00

摘要： A torque-limiting device having two torque transfer bodies, which, as a consequence of oblique flank contact during relative rotation about an axis, can be moved relative to each other in the direction of the axis against the restoring force of a spring element, which is supported on a shoulder of an abutment, the position of which shoulder is set during calibration of a limiting torque. The torque-limiting device is calibrated by applying a predefined force to the spring element. The resulting spring length defines the axial position of the shoulder of the abutment, which axial position is irreversibly fixed.

公开(公告)号：US10828751B2

公开(公告)日：2020-11-10

申请号：US16072779

申请日：2017-01-11

申请人： Wera Werkzeuge GmbH

发明人： Michael Abel ,  Ralf-Richard Richter

IPC分类号： B25B13/46 ,  B25B13/04

摘要： A screwdriver having a changeable direction freewheel lock, having a drive output member that is mounted so as to be rotatable about an axis in a bearing eye of a drive input member and has a circumferential toothing and a drive-output profile portion, and locking members that are inserted in a pocket of the drive input member and each have a locking toothing for engaging with the circumferential toothing in a manner preventing rotation. What is essential is that the locking members are two bodies that are movable relative to one another, can be displaced in an articulated manner with respect to one another and each have a switching extension which project into the same switching recess of a switching member.

公开(公告)号：US20190030689A1

公开(公告)日：2019-01-31

申请号：US16072779

申请日：2017-01-11

申请人： Wera Werkzeuge GmbH

发明人： Michael Abel ,  Ralf-Richard Richter

IPC分类号： B25B13/46 ,  B25B13/04

CPC分类号： B25B13/463 ,  B25B13/04 ,  B25B13/468

摘要： A screwdriver having a changeable direction freewheel lock, having a drive output member that is mounted so as to be rotatable about an axis in a bearing eye of a drive input member and has a circumferential toothing and a drive-output profile portion, and locking members that are inserted in a pocket of the drive input member and each have a locking toothing for engaging with the circumferential toothing in a manner preventing rotation. What is essential is that the locking members are two bodies that are movable relative to one another, can be displaced in an articulated manner with respect to one another and each have a switching extension which project into the same switching recess of a switching member.

公开(公告)号：US20220143793A1

公开(公告)日：2022-05-12

申请号：US17434980

申请日：2019-12-09

申请人： Wera Werkzeuge GmbH

发明人： Michael Abel

IPC分类号： B25B23/14 ,  B25B23/142 ,  B25B13/46

摘要： A screw driving tool including a torque output element which defines an axis and is mounted in a housing, a torque transmission section with a plurality of depressions, and a torque transmission element, which is pretensioned by the force of a force accumulator and engages into at least one of the depressions, for coupling the torque transmission section to the housing so as to transmit a torque, the torque-transmitting coupling being released when the torque transmission element leaves the depression in an edge-controlled manner against the force of the force accumulator, which can be adjusted by an adjustment device, when a limit torque is exceeded. In order to develop the tool in an advantageous manner in terms of application, a switchover element is proposed which can be moved from a release position into a blocking position and which allows the torque transmission element to leave the depression in the release position but blocks the torque transmission element in the blocking position.

公开(公告)号：US20210237231A1

公开(公告)日：2021-08-05

申请号：US16972643

申请日：2019-06-04

申请人： Wera Werkzeuge GmbH

发明人： Michael Abel

IPC分类号： B25B13/16 ,  B25B13/08

摘要： A screwing tool, including an elongate handle which, at each of the two ends thereof, bears a head pivotable about a pivot axis and having two torque transmission flanks in each case and has a force application flank for introducing a force in order to produce a torque on the head remote from the relevant force application flank, wherein, in a pivoting end position of the head, in which a stop of the head lies against a counter stop of the handle, a narrow side of the head functionally directed away from the stop forms an extension of the force application flank. The second head forms an extension of the force application flank and can be used as a hand grip.

公开(公告)号：US20220097214A1

公开(公告)日：2022-03-31

申请号：US17426703

申请日：2020-02-03

申请人： Wera Werkzeuge GmbH

发明人： Michael Abel

IPC分类号： B25B15/04 ,  B25B17/02

摘要： A screwdriver tool including a gear ratio arranged in a handle for multiplying a rotation angle transmitted from the hand to a blade protruding from the handle. A blocking element can be rotated from a release position, in which a first handle section can be rotated relative to a second handle section for the purpose of quick-action screwing, into a blocking position, in which a blocking element secures the blade to the handle in a rotationally fixed manner. The switching between the release position and the blocking position occurs by means of a push-button arranged in the tip of the handle, which is moved back into its starting position in a spring-loaded manner after being actuated.