Makita Corporation

Tomoyuki Ota

Hitoshi Suzuki

Kiyoshi Nishibe

Masanori Furusawa

Takuya Kusakawa

Tomonobu Nashimoto

Shingo Umemura

Takeshi Nishimiya

Yoshifumi Morita

Ken Yamauchi

Tomoyuki Kutsuna

Michisada Yabuguchi

Hiroshi Nojiri

Shinichi Hira

Nozomu Iwamoto

Mikihiro Kitahara

Tadashi Makihara

Yukio Kobayashi

An electric power tool includes a main body supporting a tool. An electric motor is housed in the main body and configured to drive the tool. A plurality of battery interfaces is integrally formed on the main body, each battery interface having a positive battery terminal and a negative battery terminal. Each battery interface is configured to removably receive a positive battery terminal and a negative battery terminal of a corresponding one of a plurality of battery packs and to electrically connect the plurality of attached battery packs in series with the electric motor. Each of the plurality of battery packs comprises a movable latch configured to engage a corresponding engagement structure defined on or near the corresponding battery interface.

Electric tool powered by a plurality of battery packs and adapter therefor

A gardening trimmer may include: a conversion mechanism for converting rotational motion of a prime mover to linear motion along a first direction; a blade for moving in reciprocating motion relative to a guide bar and including a plurality of slots; and a plurality of guide members each disposed in a corresponding slot of the plurality of slots of the blade. The plurality of slots may include: at least one first slot in which a corresponding guide member of the guide members that is connected to a housing is disposed. A combination of the slots and the guide members may include: a first combination to reduce frictional resistance generated by the reciprocating motion; and a second combination to reduce vibration generated by the reciprocating motion, and at least one combination of the at least one first slot and its corresponding guide member is the second combination.

Gardening trimmer

An electrical device, such as a power tool, includes a first battery pack receptacle configured to receive a first battery pack and a second battery pack receptacle configured to receive a second battery pack. The second battery pack is electrically connected in a series-type configuration with the first battery pack. The electrical device also includes circuitry with an electronic processor. The circuitry is configured to alter a first signal output from the electronic processor to at least one selected from a group consisting of the first battery pack and the second battery pack, and to alter a second signal received by the electronic processor from at least one selected from the group consisting of the first battery pack and the second battery pack.

A working machine according to one aspect of the present disclosure comprises an operation rod, a leading end unit, a rear end unit, and a drive permitter. The operation rod is configured to be transformable between an extended state and a non-extended state. The leading end unit is provided at one end of the operation rod. The leading end unit comprises a motor configured to drive a working element. The rear end unit is provided at the other end of the operation rod. The rear end unit comprises a controller configured to control driving of the motor. The drive permitter is configured to permit driving of the motor when the operation rod is in the extended state and not to permit driving of the motor when the operation rod is in the non-extended state.

Foldable working machine with safety switch to enable operation

An adapter connects a plurality of first battery packs, each having a nominal voltage of about 18-36 volts, in series to an power tool having a rated voltage that is 36 volts or higher. The power tool includes a second battery interface configured to removably attach a second battery pack. The adapter includes a plurality of first battery interfaces configured to removably attach the plurality of first battery packs and having a different physical configuration than the second battery interface. A connector of the adapter is configured to be removably attached to the second battery interface. A plurality of visual indicators is disposed on the adapter such that they have the same or substantially the same illumination direction and they visually indicate at least a level of charge of each of the first battery packs attached to the adapter.

Adapter for connecting a plurality of battery packs to a power tool

A motor-powered apparatus according to one aspect of the present disclosure comprises a motor, a drive switch, a reverse switch, and a control unit. The control unit is configured to drive the motor in a reverse direction when a drive command is inputted via the drive switch after a reverse command is inputted via the reverse switch and to drive the motor in a forward direction when the drive command is inputted again via the drive switch.

Motor-powered apparatus and method of controlling the same

An electric power tool comprises a main body supporting a tool and an electric motor housed in the main body for driving the tool. A plurality of first battery interfaces is configured to removably receive or attach a plurality of first battery packs and to electrically connect the plurality of attached first battery packs in series with the electric motor. A plurality of indicators is configured to communicate information concerning the respective conditions of the plurality of attached first battery packs. The plurality of indicators is arranged such that all of the indicators are simultaneously viewable by a user of the electric power tool.

An adapter for an electric power tool couples battery packs with the electric power tool. The adapter is provided with a voltage regulator circuit interposed between the battery packs and the electric power tool. The voltage regulator circuit regulates a supply voltage from the battery packs to the electric power tool to a level corresponding to a rated voltage of the electric power tool. The voltage regulator is capable of raising the supply voltage higher than nominal voltages of the battery packs.

Electric power tool powered by battery pack and adapter therefor

An effective technique is provided for rationally clamping and holding various kinds of tool bits which can be selectively replaced with each other and attached to the driving shaft, in a power tool The power tool includes a driving shaftfor driving a tool bitA orB which is arbitrarily selected from various kinds of tool bits, a first clamping elementprovided on the driving shaftand a second clamping elementA,B provided separately from the driving shaftand can be fixed to the driving shaft. The selected tool bitA,B is clamped and held between the first clamping elementand the second clamping elementA,B. Various kinds of the tool bitsA,B have holesformed according to the kind of the tool bit, and either one of the first clamping elementand the second clamping elementA,B has various kinds of protruding engagement partsappropriate to the kind of the tool bitA,B and engaged with the holesformed according to the kind of the tool bitA,B.

Power tool

A battery adapter can include a plurality of machine-side-connecting sections capable of being connected to a plurality of battery-connecting ports provided on an electric machine, and a battery-side-connecting section(s) to which a battery or batteries can be connected. The number of the machine-side-connecting sections is preferably configured to be larger than the number of the battery-side-connecting section(s). Further, the electric machine is preferably connected to the machine-side-connecting sections of the battery adapter through its battery-connecting ports. The electric machine can be driven by the battery or batteries connected to the battery-side-connecting section(s) of the battery adapter.

Battery adapter

An electric apparatus system includes a tool battery usable as a power source for a power tool, an electric apparatus excluding a power tool, and a battery case capable of receiving the tool battery. The battery case is disposed on one side of the electric apparatus, so that the electric apparatus is stabilized in position by the battery case. The electric apparatus and the battery case are mechanically and electrically connected to each other.

Growing community of inventors

Anjo, Japan

Tomoyuki Ota