公开(公告)号：US11351663B2

公开(公告)日：2022-06-07

申请号：US16726349

申请日：2019-12-24

Applicant: Ingersoll-Rand Industrial U.S., Inc.

Inventor： Mark T. McClung ,  Warren A. Seith

IPC: B25B21/02 ,  B25D16/00 ,  B25D17/00

Abstract: An apparatus and method for latching a hammer of an impact tool, the hammer being displaceable along a cam shaft between a latched or retracted position and an impact position at which the hammer impacts an anvil. The apparatus can include one or more latching bodies, a portion of the one or more latching bodies being positioned within the hammer groove when the hammer is at the latched position, and removed from the hammer groove when the hammer is to be released from the latched position. The apparatus can also include an actuator sleeve that is configured to retain at least the portion of the one or more latching bodies within the hammer groove when the actuator sleeve is at the first position, and accommodate removal of the portion of the latching bodies from the hammer groove when the actuator sleeve is at a second position.

公开(公告)号：US20210379744A1

公开(公告)日：2021-12-09

申请号：US17410726

申请日：2021-08-24

Applicant: Ingersoll-Rand Industrial U.S., Inc.

Inventor： Warren A. Seith ,  Jason D. Urban ,  Douglas E. Pyles ,  Mark T. McClung

IPC: B25B23/147 ,  B25B21/02

Abstract: An impact tool is provided which includes a drive source configured to rotate an output drive. A hammer is movable in a first direction to apply a rotational impact force on an anvil which rotates the output drive. A first hammer angle sensor set to a first signal channel and located proximate to a surface of the hammer. A plurality of regularly spaced targets are located on the surface of the hammer. Each of the plurality of regularly spaced targets are detectable by the first hammer sensor. And detection of one or more of the plurality of regularly spaced targets by the first hammer sensor indicates movement of the hammer.

公开(公告)号：US10987784B2

公开(公告)日：2021-04-27

申请号：US15903426

申请日：2018-02-23

Applicant: Ingersoll-Rand Industrial U.S., Inc.

Inventor： Warren A. Seith

IPC: B25B19/00 ,  B25B21/02 ,  B25B21/00 ,  H02P6/182 ,  H02P6/21

Abstract: An impact tool of the present disclosure provides an impact mechanism having a hammer and an anvil, the hammer being rotatable about a first axis and to periodically impact the anvil to drive rotation of the anvil about the first axis. The electric motor includes a plurality of pole pairs of windings and a rotor that is rotatable with respect to consecutively energized pole pairs of windings. No encoder or sensor is electronically coupled to the electric motor to detect a position of at least one magnet attached to the rotor with respect to at least one pole pair when the rotor is in a stopped condition. When the rotor is in the stopped condition, the motor controller energizes the at least one pole pair to initiate rotation and detect a back EMF generated by movement of the rotor without a sensor or encoder to indicate the predetermined location of the at least one magnet attached to the rotor with respect to the at least one pole pair.

公开(公告)号：US10800014B2

公开(公告)日：2020-10-13

申请号：US15830478

申请日：2017-12-04

Applicant: Ingersoll-Rand Industrial U.S., Inc.

Inventor： Warren A. Seith ,  Mark T. McClung

IPC: B25B21/02 ,  B25B21/00 ,  B25B13/48 ,  B25F5/02

Abstract: Illustrative embodiments of impact tools are disclosed. In at least one illustrative embodiment, an impact tool comprises a motor including an output shaft configured to rotate about a first axis and a drive train configured to be driven by the output shaft of the motor and to drive rotation of an output drive about a second axis that is non-parallel to the first axis, wherein the drive train includes an impact mechanism comprising a hammer configured to rotate about a third axis to periodically deliver an impact load to an anvil, the third axis being parallel to and spaced apart from the second axis.