US 12,454,016 B2
Core drill
Tomohiko Imae, Anjo (JP)
Assigned to MAKITA CORPORATION, Anjo (JP)
Filed by MAKITA CORPORATION, Anjo (JP)
Filed on Jun. 18, 2024, as Appl. No. 18/746,123.
Claims priority of application No. 2023-109190 (JP), filed on Jul. 3, 2023; application No. 2023-109203 (JP), filed on Jul. 3, 2023; and application No. 2023-109204 (JP), filed on Jul. 3, 2023.
Prior Publication US 2025/0010381 A1, Jan. 9, 2025
Int. Cl. B23B 45/02 (2006.01); B23B 45/00 (2006.01)
CPC B23B 45/008 (2013.01) [B23B 45/02 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A core drill comprising:
a motor comprising a stator and a rotor, which is rotatable relative to the stator about a rotational axis extending in the front-rear direction;
a speed-reducing mechanism, which is disposed more forward than the stator;
an output shaft, at least a portion of which is disposed more forward than the speed-reducing mechanism and which, in the state in which a core bit is mounted thereon, is rotated by the rotational force of the rotor transmitted via the speed-reducing mechanism;
a battery-mounting part, on which a battery pack is mountable;
a motor-housing part, which houses the motor;
a grip part disposed more rearward than the motor-housing part such that at least a portion of the grip part is intersected by the rotational axis;
a trigger disposed on the grip part; and
at least a first controller configured to control energization of the motor;
wherein:
in the front-rear direction, at least a portion of the first controller is disposed between the motor and the grip part; and
a virtual line that is colinear with the rotational axis intersects the trigger and the first controller.