Hitachi Koki Co., Ltd.

Shinichi Sakuma

Naoya Eto

Akira Onose

Naoto Yamashiro

The portable belt grindercomprises; a main bodywith an electric motorbuilt therein; a drive pulley disposed in the lower portion of the main bodyand rotationally drivable by the electric motor; an idle pulley disposed as the companion to the drive pulley; and, an endless abrasive beltwound between the two pulleys. In the portable belt grinder, in the portion of the main bodythat exists in the vicinity of the abrasive belt, there is formed a hole portionwhich is used to visually confirm the side end edge of the abrasive beltfrom above. Also, on the upper surface of the main body, there is mounted a transparent coverwhich is used to cover the hole portion

Portable belt grinder

An electric-powered cutting machine includes a reciprocable plunger held by and protruding outward from a housing; an operation member capable of being pivoted on the housing; and a blade holding mechanism disposed at a tip end portion of the plunger, the blade holding mechanism causing a blade to be detachably attached to the plunger. The operation member includes an operation portion and an abutting portion, wherein a distance from the operation portion to a rotating fulcrum is longer than a distance from the abutting portion to the rotating fulcrum. The blade holding mechanism is biased and is capable of swinging, and the blade holding mechanism includes a rotating member capable of being pressed against a side of the blade, wherein the abutting portion abuts against the rotating member when the operating member swings, and wherein the blade is detachably attached to the plunger by swinging of the rotating member.

Electric-powered cutting machine with blade holding mechanism

An electric-powered cutting machine includes: an electric motor, a housing for the electric motor; a plunger driven by the electric motor to reciprocate; and a blade holding mechanism. The blade holding mechanism holds a blade at a tip end portion of the plunger. The blade holding mechanism includes: a blade receiving face including a groove, a swinging member and a pressing member. The groove is shaped substantially the same as an attachment portion of the blade. The swinging member has one and other ends and pivoted at a swing fulcrum. The one end has a blade pressing portion capable of being disposed to oppose to the groove. The other end elongates to separate from the plunger. The pressing member presses the one end toward the groove.

Growing community of inventors

Ibaraki, Japan

Shinichi Sakuma