US 12,172,282 B2
Rotary hammer
Hajime Takeuchi, Anjo (JP); and Kei Watanabe, Anjo (JP)
Assigned to MAKITA CORPORATION, Anjo (JP)
Filed by MAKITA CORPORATION, Anjo (JP)
Filed on Aug. 14, 2023, as Appl. No. 18/233,417.
Claims priority of application No. 2022-139651 (JP), filed on Sep. 2, 2022.
Prior Publication US 2024/0075603 A1, Mar. 7, 2024
Int. Cl. B25D 16/00 (2006.01); B25D 17/04 (2006.01)
CPC B25D 16/006 (2013.01) [B25D 16/003 (2013.01); B25D 17/043 (2013.01); B25D 2216/0023 (2013.01); B25D 2216/0084 (2013.01); B25D 2217/0073 (2013.01); B25D 2250/095 (2013.01); B25D 2250/261 (2013.01); B25D 2250/265 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A rotary hammer that is configured to selectively operate in multiple modes including a first mode in which a tool accessory is only linearly driven along a driving axis and a second mode in which the tool accessory is at least rotationally driven around the driving axis, the rotary hammer comprising:
a switch;
a motor that is driven when the switch is ON;
a switch manipulation member that includes (i) a body that is configured (a) to be normally held in an OFF position where the body allows the switch to be OFF, and (b) to be moved, when manipulated by a user, to an ON position where the body causes the switch to be ON, and (ii) a protrusion that is movable between (a) a protruding position where the protrusion protrudes from the body by a first amount and (b) a retracted position where the protrusion does not protrude from the body or the protrusion protrudes from the body by a second amount that is smaller than the first amount;
a locking member that is configured to be moved, when manipulated by a user, between (i) an unlock position where the locking member allows the switch manipulation member to move between the ON position and the OFF position and (ii) a lock position where the locking member holds the switch manipulation member in the ON position by abutting the protrusion that is in the protruding position; and
a mode detecting device that is configured to electrically detect a present mode of the rotary hammer,
wherein:
the body of the switch manipulation member houses a solenoid that is configured to operate based on a detection result of the mode detecting device;
the protrusion is integrated with a plunger of the solenoid; and
the protrusion is configured to be (i) in the protruding position when the present mode is the first mode, and (ii) in the retracted position when the present mode is the second mode.