Patents Assigned to Makita Corporation
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Publication number: 20240044215Abstract: A hole is formed in a drill target with improved workability. An electric work machine includes a motor, a motor housing accommodating the motor, a handle housing including a grip including a trigger switch operable to activate the motor, a reducer, a gear housing accommodating the reducer, a rotation output unit protruding frontward from the gear housing and rotatable under a rotational force transmitted from the motor through the reducer with a drill bit being attached to the rotation output unit, and a handle fastened to the gear housing and at least partially located laterally from the gear housing.Type: ApplicationFiled: June 7, 2023Publication date: February 8, 2024Applicant: MAKITA CORPORATIONInventors: Hidenori NAGASAKA, Tomohiko IMAE, Yoshihiro ITO
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Patent number: 11890730Abstract: A driver drill includes a motor housing that holds an electric motor, an axis of rotation of a rotor of the electric motor extending in a front-rear direction of the driver drill, a grip housing having an upper end connected to a lower part of the motor housing and an enlarged-part housing connected to a lower end of the grip housing and spaced from the motor housing in an up-down direction of the driver drill that is perpendicular to the front-rear direction. A torque setting of the driver drill is changeable, and the driver drill is changeable between a setting unlocked state in which the torque setting is changeable and a setting locked state in which the torque setting is not changeable.Type: GrantFiled: June 9, 2022Date of Patent: February 6, 2024Assignee: MAKITA CORPORATIONInventors: Yuta Araki, Akira Ito
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Patent number: 11894710Abstract: A battery pack in one aspect of the present disclosure includes a first cell, a memory device, a target current calculator, and an information notifier. The memory device stores a maximum variation of a charging current value. The maximum variation is determined depending on a characteristic of the battery pack. The target current calculator calculates a newest value of a target current value based on (i) a previous value of the target current value and (ii) the maximum variation. The information notifier transmits a charge condition information including the newest value.Type: GrantFiled: September 3, 2020Date of Patent: February 6, 2024Assignee: MAKITA CORPORATIONInventor: Hiroki Uesugi
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Patent number: 11890713Abstract: A power tool may include: a motor; a power transmission mechanism connected to the motor; a housing that houses the motor and the power transmission mechanism; a tip tool holder connected to the power transmission mechanism and holding a tip tool; and a cover covering at least a part of the tip tool. The cover may include: a fixed cover portion fixed to the housing; a movable cover portion movable with respect to the fixed cover portion; and an operation member mechanically connected to the movable cover portion and configured to move the movable cover portion with respect to the fixed cover portion.Type: GrantFiled: December 26, 2018Date of Patent: February 6, 2024Assignee: MAKITA CORPORATIONInventors: Ryo Imuta, Ryosuke Otani
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Patent number: 11890731Abstract: A power tool includes a motor; an output part configured to be rotated around a rotational axis in response to energization of the motor; a plurality of lights disposed spaced apart around the output part; and an optical member having a refractive surface that refracts illumination light emitted from a light-emitting surface of one of the lights such that the main illumination direction extends at an angle away from the rotational axis.Type: GrantFiled: May 17, 2022Date of Patent: February 6, 2024Assignee: MAKITA CORPORATIONInventor: Akihiro Hozumi
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Publication number: 20240033870Abstract: A dust collecting attachment for an electric power tool includes dust collecting fans, a suctioning portion, and a dust collecting portion. The suctioning portion generates a suctioning force by rotation of the dust collecting fans. The dust collecting portion captures dust suctioned from the suctioning portion. When the dust collecting attachment is mounted to an electric power tool including a motor, a fan shaft of the dust collecting fans is connected to a rotation shaft that is disposed in the electric power tool and rotates in accordance with driving of the motor to allow the dust collecting fans to rotate integrally with the rotation shaft. The dust collecting fans are disposed in a plurality of stages in an axial direction of the fan shaft.Type: ApplicationFiled: July 20, 2023Publication date: February 1, 2024Applicant: MAKITA CORPORATIONInventors: Hajime TAKEUCHI, Hitoshi IIDA, Masanori FURUSAWA, Yoji INOUE
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Publication number: 20240039308Abstract: A battery pack includes a battery, a coupling portion, a connection determiner, a receiver, and a prohibition range controller. The prohibition range controller varies a prohibition range depending on the connection or non-connection of the electric work machine that is determined by the connection determiner, or the specification of the electric work machine connected to the coupling portion. The prohibition range is defined by a current range and a voltage range. A discharge from the battery is prohibited in the prohibition range.Type: ApplicationFiled: December 15, 2021Publication date: February 1, 2024Applicant: MAKITA CORPORATIONInventors: Tomoki HORI, Hayato KANO
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Publication number: 20240032748Abstract: A nozzle includes: a main body having a lower surface that faces a cleaning target surface; a groove provided on the lower surface and recessed upward from the lower surface; and a suction port provided inside the groove and facing the cleaning target surface. The groove includes: a first groove; and a second groove at least a part of which is provided in the rear of the first groove. A depth H1 of the first groove is deeper than a depth H2 of the second groove.Type: ApplicationFiled: July 3, 2023Publication date: February 1, 2024Applicant: MAKITA CORPORATIONInventor: Hideaki TAKANO
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Patent number: 11883941Abstract: A hammer drill includes a housing inside which a motor, a tubular tool holder, a driving mechanism, a rotation conversion member, and an inner housing are disposed. The driving mechanism is configured to perform at least one of rotation actuation of the tool holder and hammering actuation of a bit. The inner housing supports the driving mechanism, supports the tool holder via a first bearing, and supports an output shaft via a second bearing. The inner housing is divided into a front housing holding the first bearing and a rear housing that is formed in a separate body from the front housing and holds the second bearing. The inner housing is formed by connecting the front housing to the rear housing in an axis line direction of the tool holder. A seal member sealing outside space of the inner housing inside the housing is disposed in the front housing.Type: GrantFiled: January 6, 2022Date of Patent: January 30, 2024Assignee: MAKITA CORPORATIONInventors: Yoshitaka Machida, Kiyonobu Yoshikane
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Publication number: 20240024973Abstract: A dust collector in one aspect of the present invention comprises a dust collection portion, a communication portion, and an interlock operation control portion. When the communication portion receives an interlock command transmitted from an electric working machine, the interlock operation control portion makes the dust collection portion operate interlocking with the electric working machine. The interlock operation control portion includes a storage portion, in which identification information specific to the electric working machine with which the dust collection portion is to be made to perform the interlock operation is stored.Type: ApplicationFiled: October 4, 2023Publication date: January 25, 2024Applicant: MAKITA CORPORATIONInventor: Hitoshi SUZUKI
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Publication number: 20240024882Abstract: To provide a construction technique of a stone material crushing tool which can prevent complication of working environment. An electrically-driven stone material crushing tool including a motor having an output shaft, a motion converting mechanism to convert a rotating movement from the output shaft to a linear movement, and a crushing member to crush the stone material by clamping by means of the linear movement of the motion converting mechanism.Type: ApplicationFiled: October 25, 2021Publication date: January 25, 2024Applicant: MAKITA CORPORATIONInventors: Koichi YAKABE, Hiroki IKUTA, Toshihito YABUNAKA
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Patent number: 11878726Abstract: A handcart may include a chassis unit and a container unit configured to be detachably attached to the chassis unit. The chassis unit may include a front wheel unit rotatably supporting a front wheel; a rear wheel unit rotatably supporting a rear wheel; a chassis frame extending in a front-rear direction and supporting the front and rear wheel units; and a prime mover configured to rotate at least one of the front wheel and the rear wheel as a drive wheel. The container unit may be selected from a group including at least a first container unit and a second container unit. The first container unit may include a first container and a first container frame extending in the front-rear direction and supporting the first container. The second container unit may include a second container and a second container frame extending in the front-rear direction and supporting the second container.Type: GrantFiled: August 6, 2020Date of Patent: January 23, 2024Assignee: MAKITA CORPORATIONInventors: Yoshinori Shibata, Susumu Kato, Tomonobu Nashimoto, Kohei Oishi, Yasuo Ifuku
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Patent number: 11878403Abstract: A rotary tool includes a tool body, a motor, a determining part, a monitoring part and a criterion changing part. The motor is housed in the tool body and configured to drive the tool accessory. The determining part is configured to determine whether or not excessive rotation of the tool body around the driving axis due to jamming of the tool accessory occurs, according to a specific determination criterion. The monitoring part is configured to monitor information relating to a use state of the rotary tool. The criterion changing part is configured to change the determination criterion according to the use state.Type: GrantFiled: December 13, 2019Date of Patent: January 23, 2024Assignee: MAKITA CORPORATIONInventors: Hikaru Sunabe, Akihiro Ito
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Publication number: 20240017369Abstract: To reduce wasteful power consumption and noise generation, a control circuit drives a motor in response to a switch being turned on after a handle detector detects attachment of an auxiliary handle and a handle gripping detector detects gripping of the auxiliary handle, controls the motor to rotate at a predetermined first rotational speed in response to the switch being turned on with the attachment and the gripping of the auxiliary handle being detected, and controls the motor to rotate at a second rotational speed lower than the first rotational speed in response to a state of a load on a tip tool being unchanged for a predetermined period of time.Type: ApplicationFiled: May 15, 2023Publication date: January 18, 2024Applicant: MAKITA CORPORATIONInventor: Fumitoshi NUMATA
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Publication number: 20240017382Abstract: A screwdriver allows a screwing operation and an unscrewing operation to be performed smoothly. A screwdriver includes a housing, a motor including a stator and a rotor, a spindle, a clutch assembly, and a spindle locking assembly. The spindle includes a rod to which a tip tool is attachable, and is supported by the housing in a manner movable between an advanced position and a retracted position in a front-rear direction. The spindle has a reception hole extending frontward from a rear end face of the spindle. The clutch assembly transmits a rotational force from the rotor to the spindle in response to the spindle moving to the retracted position during forward rotation of the rotor. The spindle locking assembly transmits a rotational force from the rotor to the spindle during reverse rotation of the rotor, and includes the reception hole, and a countershaft placed in the reception hole.Type: ApplicationFiled: May 18, 2023Publication date: January 18, 2024Applicant: MAKITA CORPORATIONInventor: Takeshi KAMIYA
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Publication number: 20240017390Abstract: A power tool having a hammer mechanism includes a motor, a driving mechanism operably connected to the motor and configured to at least linearly drive a tool accessory along a driving axis, a tool body that houses the motor and the driving mechanism, an outer housing elastically connected to the tool body such that the outer housing at least partially covers the tool body and being slidable relative to the tool body in a first direction substantially parallel to the driving axis, a guide part configured to guide sliding movement of the outer housing relative to the tool body, and a handle including a grip part extending in a second direction, the handle being elastically connected at least to the outer housing and being movable relative to the outer housing in the first direction and in at least one direction that intersects the first direction.Type: ApplicationFiled: June 29, 2023Publication date: January 18, 2024Applicant: MAKITA CORPORATIONInventors: Hajime TAKEUCHI, Masanori FURUSAWA
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Patent number: 11876190Abstract: A battery pack in one aspect of the present disclosure includes a battery and a controller provided with a counter value. During discharge of the battery pack, the controller calculates an addition value in accordance with a total number of use of the battery pack under a specified condition. The controller updates the counter value by adding the addition value. The controller prohibits the discharge of the battery pack in response to the counter value reaching a protection threshold.Type: GrantFiled: September 16, 2020Date of Patent: January 16, 2024Assignee: MAKITA CORPORATIONInventors: Tadahiko Kobayakawa, Hiroki Uesugi, Hayato Kano
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Patent number: 11872646Abstract: A reciprocating tool includes a housing, a first tubular member, a slider, a second tubular member and a lock member. The first tubular member is pivotable around a first axis and has a single first protrusion protruding radially inward. The second tubular member is disposed in the first tubular member, is coupled to a first end portion of the slider to be pivotable around a second axis, and has a single second protrusion protruding radially outward. The second tubular member has a protruding portion configured to allow the lock member to move from a lock position to an unlock position. The single first protrusion is configured to engage with the single second protrusion and cause the second tubular member to pivot when the first tubular member pivots. The single second protrusion is provided on a portion of the second tubular member other than the protruding portion.Type: GrantFiled: October 20, 2021Date of Patent: January 16, 2024Assignee: MAKITA CORPORATIONInventors: Yuta Yamashita, Tomohiro Ukai
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Patent number: D1012016Type: GrantFiled: January 17, 2023Date of Patent: January 23, 2024Assignee: MAKITA CORPORATIONInventors: Wataru Suzuki, Hideyuki Taga
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Patent number: D1012648Type: GrantFiled: January 28, 2022Date of Patent: January 30, 2024Assignee: MAKITA CORPORATIONInventors: Taiki Misawa, Yuta Okuhira
