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公开(公告)号：US20240359298A1
公开(公告)日：2024-10-31
申请号：US18765769
申请日：2024-07-08
Applicant: MAKITA CORPORATION
Inventor： Ryunosuke KUMAGAI , Tokuo HIRABAYASHI , Tomoyuki KONDO
Abstract: A power tool includes an anvil (14) operably driven by a motor (10); an insertion hole (91) defined the anvil, into which a bit is insertable; a through hole (92) extending radially from the insertion hole; a ball (93) disposed in the through hole; and a manually-movable sleeve (99) mounted around on the anvil and being axially slidable relative to the anvil. At a retracted position, the manually-movable sleeve presses the ball radially inwardly. At an advanced position, the manually-movable sleeve releases the pressing of the ball. A flat spring (97) is configured to bias the ball radially inwardly. The manually-movable sleeve has a length such that the flat spring is exposed at the advanced position.
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公开(公告)号：US20240351181A1
公开(公告)日：2024-10-24
申请号：US18632492
申请日：2024-04-11
Applicant: MAKITA CORPORATION
Inventor： Hidenori NAGASAKA , Yuta ARAKI , Ryoichi ISHIKAWA , Tomohiko IMAE
CPC classification number: B25F5/02 , B25F5/001 , E21B11/005
Abstract: A rechargeable angle drill includes: a motor, which includes a rotor configured to rotate about a motor rotation axis, the motor rotation axis extending in an up-down direction; a motor housing part, which houses the motor; a trigger lever, which is operated to start the motor; a handle housing part, which is disposed upward of the motor housing part and in which the trigger lever is provided; a speed reduction mechanism; a gear housing part, which is disposed downward of the motor housing part and houses the speed reduction mechanism; and a rotation output part, which protrudes forward from the gear housing part and rotates about an output rotation axis orthogonal to the motor rotation axis based on a rotational force transmitted from the motor via the speed reduction mechanism. The trigger lever is disposed upward of a center of the handle housing part in the up-down direction.
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公开(公告)号：US12122032B2
公开(公告)日：2024-10-22
申请号：US18073107
申请日：2022-12-01
Applicant: MAKITA CORPORATION
Inventor： Yukiko Eba , Takao Kuroyanagi
CPC classification number: B25F5/001 , B25B21/008 , F16H3/666
Abstract: An electric work machine includes: a motor; a first planetary gear mechanism; a second planetary gear mechanism; a spindle; a first speed switch mechanism including a first internal gear of a first stage unit and a second internal gear of a second stage unit; and a second speed switch mechanism. The first speed switch mechanism performs switching between a first speed reducing mode in which rotation of the second internal gear is prevented and rotation of the first internal gear is allowed and a second speed reducing mode in which rotation of the first internal gear is prevented and rotation of the second internal gear is allowed. The second speed switch mechanism performs switching between an enabled mode in which rotation of an internal gear of the second planetary gear mechanism is prevented and a disabled mode in which the rotation of the internal gear is allowed.
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公开(公告)号：US12122031B2
公开(公告)日：2024-10-22
申请号：US17952510
申请日：2022-09-26
Applicant: MAKITA CORPORATION
Inventor： Yukiko Eba , Yuta Araki
Abstract: An electric work machine reduces damage to its components under a greater load on a spindle. An electric work machine includes a motor, a planetary gear assembly rotatable with a rotational force from the motor and including a carrier having a hole having an inner surface including two carrier flat surfaces, a spindle including a rear portion received in the hole and having an outer surface including two spindle flat surfaces, and a spindle locking assembly that transmits a rotational force in one direction from the carrier to the spindle and including a lock cam surrounding the spindle frontward from a front surface of the carrier and rotatable together with the spindle, a lock ring surrounding the lock cam, and a plurality of cylindrical members between the lock cam and the lock ring.
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公开(公告)号：US12122016B2
公开(公告)日：2024-10-22
申请号：US17666773
申请日：2022-02-08
Applicant: MAKITA CORPORATION
Inventor： Fumihide Sugita
CPC classification number: B24B55/102 , B24B23/02
Abstract: A long rod grinding machine reduces the likelihood of dust escaping and falling. The long rod grinding machine includes a head and a rod having an end connected to the head and extending in a front-rear direction. The head includes an electric motor, a pad movable with a driving force from the electric motor, a vertical wall surrounding a radially outer edge of the pad, and a contact member located between the vertical wall and the pad and surrounding the radially outer edge of the pad. The contact member includes a brush holder having one or more through-holes extending in a radial direction of the pad, and a brush located below the brush holder and having a lower end located downward from a lower end of the vertical wall.
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Patent Agency Ranking
公开(公告)号：US12121134B2
公开(公告)日：2024-10-22
申请号：US17954538
申请日：2022-09-28
Applicant: MAKITA CORPORATION
Inventor： Yoichiro Koike
CPC classification number: A45F3/04 , A45F3/12 , A45F2003/045 , A45F2003/125
Abstract: A backpack-type assembly may include: a body; and a base member. The body may include a cooling fan. The base member may include: a back plate attached to the body; and a harness attached to the back plate and configured to be worn on a user. The harness may include: a cooling port; and at least one shoulder belt configured to be worn on a shoulder of the user. The cooling fan may be configured to circulate cooling air into or out of the base member through the cooling port of the harness.
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公开(公告)号：US20240337271A1
公开(公告)日：2024-10-10
申请号：US18749034
申请日：2024-06-20
Applicant: MAKITA CORPORATION
Inventor： Fumitoshi NUMATA
CPC classification number: F04D29/4253 , F04D17/165 , F04D25/086
Abstract: A blower includes a body, a motor, and a single fan configured to rotate in response to rotation of a motor shaft to discharge air through a discharge opening. The maximum rotational speed of the motor shaft is within a range of 50,000 rpm to 120,000 rpm. An area of the discharge opening is changeable by a user. The blower is configured to selectively operate in a first mode or in a second mode according to the area of the discharge opening. In the first mode, the maximum blowing force of the air discharged through the opening is within a range of 2.5 N to 5.0 N when the motor is driven at the maximum rotational speed. In the second mode, the maximum dynamic pressure of the air discharged is within a range of 30 kPa to 65 kPa when the motor is driven at the maximum rotational speed.
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公开(公告)号：US20240326216A1
公开(公告)日：2024-10-03
申请号：US18422193
申请日：2024-01-25
Applicant: MAKITA CORPORATION
Inventor： Yoshitaka MACHIDA , Taro Hisano
CPC classification number: B25D17/043 , B25D16/00
Abstract: An auxiliary handle for a work tool reduces vibrations transmitted to a grip. An auxiliary handle for a work tool is an auxiliary handle detachably attachable to the work tool. The auxiliary handle includes an attachment being elongated, elastically deformable, and windable around an outer circumference of the work tool, a threaded shaft including a basal portion connected to two ends of the attachment, a base being cylindrical and receiving the threaded shaft, a distal member being adjacent to a distal end of the base and receiving a distal end of the threaded shaft screwed into the distal member, and a grip being cylindrical and covering the base.
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公开(公告)号：US12107290B2
公开(公告)日：2024-10-01
申请号：US17549166
申请日：2021-12-13
Applicant: Makita Corporation
Inventor： Takuya Sumi , Sho Tsuda
IPC: H01M50/262 , H01M50/209 , H01M50/271
CPC classification number: H01M50/262 , H01M50/209 , H01M50/271
Abstract: An electrical apparatus may be provided with: a housing; a first electrical apparatus-side terminal; a first terminal cover configured to move between a covering position and an exposing position; and a first locking member configured to engage with the first terminal cover positioned at the covering position, and configured to move between a lock position at which the first locking member restricts movement of the first terminal cover from the covering position to the exposing position and an unlock position. The first locking member may be configured to move from the lock position to the unlock position while a first target apparatus is slid in the sliding direction to be attached to the housing. When the first locking member is positioned at the lock position, a user may be unable to directly shift the first locking member from the lock position to the unlock position.
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公开(公告)号：US12095312B2
公开(公告)日：2024-09-17
申请号：US17824474
申请日：2022-05-25
Applicant: MAKITA CORPORATION
Inventor： Junya Inuzuka
Abstract: A sensor board is downsized. An electric work machine includes a stator, a rotor rotatable about a rotation axis, magnetic sensors, a sensor board supporting the magnetic sensors, and an output unit drivable by the rotor. The stator includes a stator core, an insulator, and coils including first-, second-, and third-phase coils. The rotor includes a rotor core and magnets fixed to the rotor core. The magnetic sensors detect the magnets and include, in a circumferential direction, a first magnetic sensor aligned with at least a portion of a first coil pair, a second magnetic sensor aligned with at least a portion of a second coil pair, and a third magnetic sensor aligned with at least a portion of a third coil pair.
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