Hitachi Koki Co., Ltd.

Koki Holdings Co., Ltd.

Keita Saitou

Hiroyuki Hanawa

Haruhisa Fujisawa

Kousei Yokoyama

Tomomasa Nishikawa

Nobuhiro Takano

Kazuhiko Funabashi

Masanori Okada

Masanori Watanabe

Takashi Ueda

Shingo Kosugi

Eiji Nakayama

Junichi Toukairin

Takuya Teranishi

Shinichirou Satou

Atsushi Sumi

Naoki Sato

Shota Hirano

In order to provide a working machine capable of suppressing an increase in size, a working machine that rotates a working tool with motive power of a motor includes a transmission mechanism that transmits a rotational force of the motor to the working tool, a front case in which the transmission mechanism is disposed, a holding tool that is attached to the front case so as to protrude from an outer surface of the case and is gripped by a worker, and an attaching hole which is provided in the front case and to which the holding tool is attached, and the attaching hole penetrates the front case in plan view intersecting with an axis that is a rotation center of the working tool.

Working machine

A power tool which has an anvilthat is rotated by a hammerand is housed in a housing, and rotates an output shaftis provided. The anviland the output shaftare integrally formed into one unit, and a carrierthat is rotatable relative to the anvilby a predetermined angle on the same axis is provided. On one portion of an outer circumferential surface of the anvil, a relief surfaceis formed. Cut-out portionsare formed at positions opposed to each other of a carrier, and by allowing an engaging pinto be interposed therein, a locking mechanism that limits the relative rotation between the anviland a lock ringis prepared. When the tool main body is manually rotated while the hammeris being stopped, the engaging pinlimits the relative rotation between the anviland the lock ring. The locked state between the anviland the lock ringis released immediately when the rotation of the motoris started.

Power tool anvil lock mechanism

Portable electric driver body

A battery pack includes a case having an upper case part and a lower case part. The battery pack further includes a battery cell accommodated inside the case, and a plurality of electrode terminals electrically connected to the battery cell. The upper case part has an opening which is arranged at a position corresponding to a position of the plurality of electrode terminals and exposes the plurality of electrode terminals. The batter pack additionally includes a suppressing member that suppresses foreign matter from entering inside the case via the opening.

Battery pack and power tool provided with the same

According to an aspect of the present invention, there is provided a battery pack to be inserted and attached to a power tool, including: a case; a battery cell accommodated inside the case; and an electrode terminal connected to the battery cell and provided on the case so as to be connectable to a tool-side electrode terminal, wherein the case includes: a case main portion; and a case sub portion which is protruded from the case main portion to be inserted into the power tool, and wherein the electrode terminal is provided on an upper surface of the case main portion at a side of the case sub portion.

A battery pack for use with a battery-driven power tool includes three battery cells in which two out of three are arranged horizontally in parallel to and in alignment with each other in a lower case and the remaining one battery cell is vertically arranged in an upper case. The upper case of the battery pack is inserted, in use, into a battery pack receiving space formed in the grip portion of a power tool. Therefore, the grip portion can be made thin and usability of the power tool is enhanced.

Battery pack and battery-driven power tool using the same

A battery packincludes a housing, a group of cells, a board, a plurality of second terminals, and a cover. An openingis formed in the housing. The boardhas a terminal arranging partA. A plurality of the second terminalsare arranged on the terminal arranging partA of the board. The coverhas a plate-like shape, and covers an area of the boardwhich is positioned between the terminal arranging partA and the opening

Battery pack and motor-driven tool using the same

A battery pack includes a plurality of lithium battery cells, an analog thermo sensing member, and an analog switch. The analog thermo sensing member detects, in an analog form, a battery temperature of at least one of the plurality of lithium battery cells, and outputs an output preventing signal if the battery temperature is over a first predetermined temperature. The analog switch element is the plurality of lithium battery cells in series, and is switched, based on the output preventing signal, to a state in which a current is prevented from flowing in the plurality of lithium battery cells.

Battery pack and electric tool

A battery pack () includes a housing (), a group of cells (), a board (), a plurality of second terminals (), and a cover (). An opening () is formed in the housing (). The board () has a terminal arranging part (A). A plurality of the second terminals () are arranged on the terminal arranging part (A) of the board (). The cover () has a plate-like shape, and covers an area of the board () which is positioned between the terminal arranging part (A) and the opening ().

Growing community of inventors

Hitachinaka, Japan

Keita Saitou