Hitachi Koki Co., Ltd.

Satsuo Sato

Takuhiro Murakami

Junichi Kamimura

Hiroto Inagawa

Yoshikazu Yokoyama

Mitsuo Ogura

Mitsuyuki Ishikawa

Naoya Eto

Yoshimitsu Kawasaki

Juurou Kobayashi

Kenichirou Yoshida

Mizuho Nakamura

Yoshio Osada

Nobuhiro Noto

Kunio Yamamoto

Tadahiro Kaneko

Yo Kawakami

Hiroyasu Ishikawa

Osamu Kawanobe

Takashi Kawamata

Takeshi Toyoshima

Takao Abe

Juurou Kobayahsi

Takayoshi Kaneta

The electric tool includes a base having an opening portion and a bottom face; a blade being projected downward from the bottom face of the base through the opening portion of the base, the blade being capable of cutting while sliding the bottom face of the base on an upper face of a work piece; a motor driving the blade; a housing accommodating the motor. The bottom face of the base is at least partially coated with a resin including fluorine.

Electric tool

A nailing machine, in which a part constituting a nose is changed so as to increase the service life of a driver blade for driving a nail. The nailing machine includes a nose having a nose hole in which the nail is supplied, and the driver blade made of metal. At least a part of a surface of the nose hole to be in contact with a front surface of the driver blade is provided with a protective body. The protective body is made of an organic material or a composite material of an organic material and a metal material. Due to this, direct mutual contact of the metal parts is prevented.

Nailing machine

Disclosed is an electric power tool having a gear mechanism, which reduces a noise by absorbing collision of gears and is resistible to a high torque. A power transmission keycomposed of high-strength plastic is provided between an output shaftand a gearand a plane or a V-groove is formed on each of the output shaftand the gearcontacting the power transmission key

Electric power tool

Disclosed is an electric power tool having a gear mechanism, which reduces a noise by absorbing collision of gears and is resistible to a high torque. A power transmission key composed of high-strength plastic is provided between an output shaft and a gear , and a plane or a V-groove is formed on each of the output shaft and the gear contacting the power transmission key

A grinder has a grinding member. The grinder includes a rotatable spindle having an engagement portion. A first flange engages the engagement portion of the spindle. The first flange and the engagement portion of the spindle define a given play therebetween in a direction of rotation. The grinding member is held between the first flange and a second flange. A lubricant solid material is provided between the first flange and the engagement portion of the spindle.

Portable grinder

Growing community of inventors

Ibaraki, Japan

Satsuo Sato