公开(公告)号：US11203106B2

公开(公告)日：2021-12-21

申请号：US16279085

申请日：2019-02-19

Applicant: MAKITA CORPORATION

Inventor： Yuji Sakakibara ,  Kazuya Kimura ,  Ryuki Yueda

IPC: B25F5/00 ,  B25B21/00 ,  B23B45/00

Abstract: A screw driving includes a housing, a motor, a spindle, a locator, a first detecting mechanism and a controller. The locator is mounted on a front end portion of the housing so as to be movable in a front-rear direction relative to the housing and configured to define a depth to which a screw is driven into a workpiece. The first detecting mechanism is configured to detect a position of the locator in the front-rear direction. The controller is configured to control driving of the motor. Rotational driving of the spindle in a forward direction is started in response to the spindle being pressed rearward, and the rotational driving of the spindle in the forward direction is stopped when the first detecting mechanism detects that the locator is disposed in a specified position rearward of a most forward position within a moving range of the locator.

公开(公告)号：US12283706B2

公开(公告)日：2025-04-22

申请号：US17343365

申请日：2021-06-09

Applicant: MAKITA CORPORATION

Inventor： Ryuki Yueda

IPC: H01M50/00 ,  B01F31/00 ,  B01F35/32 ,  B25D16/00 ,  B25F5/00 ,  E04G21/06 ,  H01M50/267 ,  H02K11/00 ,  B01F101/28

Abstract: An electric work machine allows use of batteries with different sizes with battery covers and allows easy maintenance of a damaged battery cover. A rechargeable concrete vibrator includes a motor, a motor housing accommodating the motor, a battery holder connected to the motor housing to receive a battery in a detachable manner, and a battery cover to cover an overall part of the battery held by the battery holder. The battery cover is attachable to and detachable from the battery holder.