391 patents
Utility
Grinding Tool
18 Jan 24
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.
Fumitoshi NUMATA
Filed: 15 May 23
Utility
Power Tool Having a Hammer Mechanism
18 Jan 24
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.
Hajime TAKEUCHI, Masanori FURUSAWA
Filed: 29 Jun 23
Utility
Screwdriver
18 Jan 24
A screwdriver allows a screwing operation and an unscrewing operation to be performed smoothly.
Takeshi KAMIYA
Filed: 18 May 23
Utility
Portable power tool
16 Jan 24
A portable power tool includes an electric motor having a motor shaft, an output shaft arranged in parallel to the motor shaft and configured to be driven by rotation of the motor shaft, a tool accessory operably connected to the output shaft and configured to undergo an orbital and/or rotational motion in response to rotation of the output shaft, a first bearing that rotatably supports the output shaft, and a second bearing that rotatably supports the output shaft and is arranged closer to the tool accessory than the first bearing in an axial direction in which the output shaft extends.
Chitphong Kuntheeya
Filed: 13 Jul 21
Utility
Reciprocating tool
16 Jan 24
A reciprocating tool includes a housing, a first tubular member, a slider, a second tubular member and a lock member.
Yuta Yamashita, Tomohiro Ukai
Filed: 20 Oct 21
Utility
Portable power tool
16 Jan 24
A portable power tool includes a first handle extending in an elongated manner and configured to be held by a user, an electric motor, a tool accessory that undergoes orbital and/or rotational motion in response to generation of a rotational driving force by the electric motor, and a battery mounting part configured to detachably attach a battery that serves as a power source for the electric motor.
Tomoki Takata, Katsumi Okouchi, Takuji Kimura
Filed: 30 Jun 21
Utility
Battery pack and method of protecting battery pack
16 Jan 24
A battery pack in one aspect of the present disclosure includes a battery and a controller provided with a counter value.
Tadahiko Kobayakawa, Hiroki Uesugi, Hayato Kano
Filed: 16 Sep 20
Utility
Working Machine
11 Jan 24
A working machine may include: a prime mover; a housing that houses the prime mover; a cutting part configured to be driven by the prime mover and cut an object; a dust collecting hose for collecting dust generated by the cutting part cutting the object; and a hose holding member configured to hold the dust collecting hose.
Takumi ISHIZAWA, Sho TSUDA
Filed: 27 Jun 23
Utility
Rotary Hammer
11 Jan 24
A rotary hammer includes a tool body, a tool holder, a cylinder, and a coupling member.
Hajime TAKEUCHI, Yoji INOUE, Masanori FURUSAWA
Filed: 16 Jun 23
Utility
Blower
11 Jan 24
A blower includes a body having a main inlet opening and a discharge opening, a motor assembly housed in the body, and an auxiliary inlet opening.
Fumitoshi NUMATA, Takumi HAYASHI
Filed: 20 Sep 23
Utility
Battery-powered System, Battery Pack, Electric Work Machine, and Charger
11 Jan 24
A battery-powered system includes a battery pack (10; 71; 81) connected to an electrical equipment (30; 50; 76; 86).
Minoru GYODA, Hitoshi SUZUKI, Motohiro OMURA
Filed: 25 Sep 23
Utility
Impact tool and dust collection system
9 Jan 24
An impact tool includes a housing, an impact mechanism unit, a motor, and a dust collection fan.
Kiyonobu Yoshikane, Hiroki Takesashi
Filed: 25 May 22
Utility
Rotating tool
9 Jan 24
A grinder including a motor, a switch operated ON and OFF in accordance with an operation of a switch lever to control a rotation of an output shaft of the motor, a spindle that rotates in accordance with the rotation of the output shaft to rotate a disk-shaped grinding wheel and a brake mechanism controllable with respect to a brake plate that integrally rotates with the output shaft, in a housing, the brake plate includes fins.
Kenji Shibata, Masanori Furusawa
Filed: 8 Dec 22
Utility
Impact tool
9 Jan 24
An impact tool includes a housing; and a motor, a tubular tool holder, a driving mechanism, a rotation shaft, a driving mechanism housing region inside the housing.
Yoshitaka Machida, Kiyonobu Yoshikane
Filed: 4 Jan 22
Utility
Cart
9 Jan 24
A cart may include a driving wheel, a motor configured to rotate the driving wheel, a motor drive circuit configured to drive the motor, a motor brake circuit configured to electrically brake the motor, a control device configured to control the motor via the motor drive circuit and the motor brake circuit so that a travelling speed of the cart becomes equal to or lower than an upper limit travelling speed, and a temperature sensor configured to detect a temperature of the motor brake circuit.
Ryo Umemoto, Hirokatsu Yamamoto
Filed: 30 Jun 22
Utility
Electrical Device
4 Jan 24
An electrical device may be configured to operate on supplied electric power.
Makoto CHIKARAISHI, Tatsuya KOBAYASHI
Filed: 12 Jun 23
Utility
Blower
4 Jan 24
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.
Fumitoshi NUMATA
Filed: 15 Sep 23
Utility
Illumination Apparatus
4 Jan 24
To efficiently illuminate a wide area, an illumination apparatus includes a housing, a light emitter, and a light-transmissive member supported by the housing.
Kazunori TSUGE
Filed: 12 May 23
Utility
Battery Pack
4 Jan 24
A battery pack includes a casing, a battery cell, a circuit board, an engaging member, a first biasing member biasing the engaging member upward, and a second biasing member biasing the engaging member upward.
Tatsuya NAGAHAMA, Kazuya TANAKA
Filed: 7 Dec 21
Utility
Electric Work Machine
4 Jan 24
An electric work machine includes a stator including a stator core, an insulator fixed to the stator core, and a coil mounted on the insulator, a rotor at least a part of which is disposed on an outer circumferential side of the stator, the rotor including a magnet, a stator base including a first heat dissipation fin and supporting the stator core, and an output unit driven by the rotor.
Kei KOUDA
Filed: 21 Oct 21