# US 12,109,677 B2 · Driver drill > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,109,677 B2 - Document ID: US12109677B2 - Status: Granted - Kind: B2 - Application number: 17/845,572 - Filed: 2022-06-21 - Published: 2023-02-09 - Granted: 2024-10-08 - Earliest claimed: 2021-08-06 - Assignees: Makita Corporation - Applicants: Makita Corporation - Inventors: Koji Takahagi; Yuta Araki - Web page: https://patentgrep.com/patent/US12109677B2 ## CPC - B25F 5/02: Construction of casings, bodies or handles {(B25F5/006, B25F5/008 take precedence)} - B25B 21/00: Portable power-driven screw or nut setting or loosening tools; (details or components, e.g. casings, bodies, of portable power-driven tools not particularly related to the operation performed B25F5/00; {for mounting or dismounting wheels B60B29/006}); Attachments for drilling apparatus serving the same purpose (machines B23P19/06) - B25B 23/147: specially adapted for electrically operated wrenches or screwdrivers - B25F 5/001: {Gearings, speed selectors, clutches or the like specially adapted for rotary tools} - H02K 7/116: with gears - H02K 7/145: {Hand-held machine tool} - H02P 6/08: Arrangements for controlling the speed or torque of a single motor (H02P6/10, H02P6/28 take precedence) - H02P 6/30: Arrangements for controlling the direction of rotation (H02P6/22 takes precedence) - B25F: COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR {(machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass B23P23/00 and subgroups)} - B25B: TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING, OR HOLDING - H02K: DYNAMO-ELECTRIC MACHINES (dynamo-electric relays H01H53/00; conversion of DC or AC input power into surge output power {H03K3/53}) - H02P: CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS ## Abstract A driver drill allows smooth change of the drive conditions of a motor. The driver drill includes a motor, an output unit located frontward from the motor and rotatable with a rotational force from the motor, a trigger lever operable to activate the motor, a forward-reverse switch lever operable to change a rotation direction of the motor, a first operation member operable to change a drive condition of the motor, a second operation member located upward from the first operation member and operable to change the drive condition of the motor, and a controller that sets the drive condition of the motor in response to an operation on at least one of the first operation member or the second operation member. ## Claims ### Claim 1 A driver drill, comprising: a motor; a motor compartment housing the motor; an output unit in front of the motor and rotatable with a rotational force from the motor; a grip extending downward from the motor compartment; a trigger lever (i) operable to activate the motor and (ii) on the grip; a battery holder below the grip; a forward-reverse switch lever (i) operable to change a rotation direction of the motor and (ii) on an upper portion of the grip; a dial operable to change a torque threshold for the motor; a push switch (i) above the dial, (ii) being operable to change the torque threshold, and (iii) on the motor compartment; and a controller configured to stop the motor when a torque of the motor exceeds the torque threshold. ### Claim 2 (depends on 1) The driver drill according to claim 1, wherein the controller is configured to control a time for the motor to stop after the torque of the motor exceeds the torque threshold. ### Claim 3 (depends on 1) The driver drill according to claim 1, wherein the push switch and the controller are configured such that a single push on the push switch changes the torque threshold by a predetermined value. ### Claim 4 (depends on 3) The driver drill according to claim 3, wherein the push switch, the controller and the forward-reverse switch are configured such that pushing the push switch with the forward-reverse switch lever in a first operational state increases the torque threshold, and pushing the push switch with the forward-reverse switch lever in a second operational state decreases the torque threshold. ### Claim 5 (depends on 4) The driver drill according to claim 4, wherein the forward-reverse switch lever and the push switch are at least partially at a same height. ### Claim 6 (depends on 1) The driver drill according to claim 1, wherein the dial and the push switch are operable in different directions. ### Claim 7 (depends on 1) The driver drill according to claim 1, wherein the dial is rotatable by 360° or greater. ### Claim 8 (depends on 1) The driver drill according to claim 1, further comprising: a display, wherein the controller is configured to cause the display to display a drive condition of the motor. ### Claim 9 (depends on 1) The driver drill according to claim 1, wherein the controller is configured to control behavior of the motor or time for a rotational speed of the motor to reach a predetermined value after the trigger lever is operated. ### Claim 10 (depends on 1) The driver drill according to claim 1, further comprising: an acceleration sensor, wherein the controller stops the motor in response to the acceleration sensor detecting a value greater than an acceleration threshold.