US 11,911,881 B2
Driver-drill
Yuta Araki, Anjo (JP); Motohiro Omura, Anjo (JP); and Akira Ito, Anjo (JP)
Assigned to MAKITA CORPORATION, Anjo (JP)
Filed by MAKITA CORPORATION, Anjo (JP)
Filed on Apr. 28, 2023, as Appl. No. 18/140,717.
Application 18/140,717 is a continuation of application No. 16/935,758, filed on Jul. 22, 2020, granted, now 11,673,240.
Claims priority of application No. 2019-144798 (JP), filed on Aug. 6, 2019; and application No. 2019-144799 (JP), filed on Aug. 6, 2019.
Prior Publication US 2023/0256572 A1, Aug. 17, 2023
Int. Cl. B25B 21/00 (2006.01); B25F 5/00 (2006.01); B25B 23/147 (2006.01)
CPC B25B 21/008 (2013.01) [B25B 23/147 (2013.01); B25F 5/001 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A rotary tool comprising:
a motor having an axis of rotation extending in a forward-rearward direction of the rotary tool;
a grip part located below the axis of rotation in an up-down direction perpendicular to the forward-rearward direction;
a planet gear configured to be driven by the motor;
an internal gear configured to change a speed, the internal gear meshing with the planet gear and being movable in the forward-rearward direction;
a sun gear configured to mesh with the planet gear;
an output shaft configured to be rotationally driven by the sun gear; and
a sensor configured to detect the forward-rearward movement of the internal gear, the sensor being disposed downward of the sun gear in the up-down direction.