Power tool
    1.
    发明授权

    公开(公告)号:US12083661B2

    公开(公告)日:2024-09-10

    申请号:US17894210

    申请日:2022-08-24

    IPC分类号: B25D16/00 B25D17/04

    摘要: A hammer drill comprises a drive mechanism including a spindle, a first ratchet coupled for co-rotation with the spindle, a second ratchet rotationally fixed to the housing, and a hammer lockout mechanism adjustable between a first mode and a second mode. The hammer drill further comprises a clutch adjustable between a first mode and a second mode. The hammer drill further comprises a detent radially movable between a locking position and an unlocking position, and a collar movable between a first rotational position in which the hammer lockout mechanism is in the first mode and a second rotational position in which the hammer lockout mechanism is in the second mode. In the first mode the detent is positioned such that the spindle is moveable relative to the housing. In the second mode the detent is positioned such that the spindle is prevented from moving relative to the housing.

    GEAR ADJUSTING DEVICE FOR ELECTRIC IMPACT DRILL

    公开(公告)号:US20180071905A1

    公开(公告)日:2018-03-15

    申请号:US15290670

    申请日:2016-10-11

    IPC分类号: B25D16/00

    摘要: A gear adjusting device for an electric impact device, comprising a front gearbox housing, a torsional cover rotationally sleeved at the top of the front gearbox housing, a reduction mechanism disposed at the bottom of the front gearbox housing and a tripping structure disposed within the torsional cover. The tripping structure consists of an adjusting screw, a tripping cushion, an adjusting ring and an impact conversion cushion. The adjusting ring can lock the tripping cushion and the impact conversion cushion. The torsional cover and the adjusting ring are provided with corresponding upper bosses and lower bosses, so the torsional cover drives the adjusting ring to rotate during anticlockwise rotation and when the torsional cover rotates clockwise, the adjusting ring does not rotate. Therefore, gear switching can be conducted when the torsional cover is rotated anticlockwise, achieving the effects of short adjustment stroke and quick switching.

    Multi-mode drill and mode switching mechanism thereof

    公开(公告)号:US09908229B2

    公开(公告)日:2018-03-06

    申请号:US14597617

    申请日:2015-01-15

    发明人: Liang Wang

    IPC分类号: B25D16/00 B25B21/00

    摘要: A multi-mode drill includes a housing, a motor and a transmission mechanism, wherein the motor and the transmission mechanism are received in the housing. The transmission mechanism has a gear reduction component and a main shaft, wherein the gear reduction component is driven by the motor, and the main shaft is connected with the gear reduction component and driven by the gear reduction component to rotate. The multi-mode drill further includes a mode switching mechanism for causing the transmission mechanism to operate in different modes. The mode switching mechanism includes an operation member and an actuator. The actuator is actuated by the operation member and engages with the transmission mechanism. At least an elastic energy storage member is arranged between the operation member and the actuator.

    Rotary hammer
    7.
    发明授权

    公开(公告)号:US09873192B2

    公开(公告)日:2018-01-23

    申请号:US14560660

    申请日:2014-12-04

    发明人: Martin Lauterwald

    IPC分类号: E21B15/04 B25D16/00 B25D11/04

    摘要: According to an aspect of the present invention there is provided a rotary hammer comprising an electric motor having its longitudinal axis perpendicular to the axis of the hammer spindle and the tool holder. A single switching arrangement activates and deactivates the hammer mechanism and the rotary drive mechanism for the tool holder. The switching arrangement has a cam portion acting on a coupling part to activate and deactivate the hammer drive mechanism, and acting on a slider part to engage and disengage a coupling sleeve with a drive sleeve to thereby activate and deactivate the rotary drive mechanism of the hammer spindle. The switching arrangement comprises a gear train disposed between the switching element and the cam portion.

    Hand-held power tool
    8.
    发明授权

    公开(公告)号:US09849574B2

    公开(公告)日:2017-12-26

    申请号:US13997305

    申请日:2011-11-29

    IPC分类号: B25D16/00 B25B23/14

    摘要: A hand-held power tool having hammer-drilling, drilling and screwing modes, including a mode-setting device having an actuating element, a setting element, and a gear unit for driving an output shaft, in which the actuating and setting elements are interconnected in a rotatably fixed manner, and, in an operating mode(s), the setting element is coupled to a transmission element supported at a coupling housing assigned to the gear unit and axially displaceable at the coupling housing in a screwing position associated with the screwing mode and is axially fixed in position at the coupling housing in hammer-drilling and drilling positions of the corresponding modes; the transmission element is connected to the coupling housing in a rotatably fixed manner, a predefined operating mode being settable by rotating the setting element; the setting and transmission elements being rotatable relative to one another, the setting element embracing at least sections of the transmission element.