公开(公告)号：US10052749B2

公开(公告)日：2018-08-21

申请号：US14704327

申请日：2015-05-05

申请人： BRIGHAM YOUNG UNIVERSITY

发明人： Christopher Mattson ,  Robert Campbell ,  Clark Davis ,  David Olligschlager ,  Brad Solomon ,  Samuel Wilding

IPC分类号： B25F5/02 ,  B25F5/00 ,  B25B21/02 ,  B25B21/00 ,  B25B23/00

CPC分类号： B25F5/001 ,  B25B21/00 ,  B25B21/02 ,  B25B23/0028 ,  B25F5/02

摘要： A drive train for supplying power to a power tool may include, a motor, a motor shaft, a rotational coupling mechanism connected to the motor shaft, and a drive shaft connected to the rotational coupling mechanism that forms the shape of a “U.” A pair of enmeshed bevel gears transfers the motion from the motor shaft to an orthogonal tool bit. The drive train may also include a hammering device that transfers a rotational impacting motion to the tool bit. A hand power tool for driving a screw may include a tool shell with an integrally formed vertical handle, a rotational recess formed into the tool shell opposite the handle, and a tool chuck within the rotational recess that drives a screw. The tool may incorporate the drive train as described above. The tool may include a mechanism for locking the tool chuck in a particular position.