Portable electric tool
First Claim
1. A portable electrical tool comprising:
- a tip tool;
a cylindrical housing accommodating a motor including a chuck attachably and detachably holding the tip tool at a tip end of a rotation shaft;
a base including;
a surface plate which slides on an upper surface of work material, and which allows the tip tool to protrude from the surface plate downwardly;
a cylindrical portion including a cutout portion to have a substantially C-shaped cross section; and
a lever having a cam surface, and rotatable to a fixed position and a release position,wherein when the lever is in the fixed position, a gap at the cutout portion is narrowed to stop movement of the cylindrical housing in the cylindrical portion, wherein when the lever is in the release position, the cylindrical housing is movable by its own weight in the cylindrical portion, and wherein the portable electric tool further includes a stopper which can stop a rotation of the lever at a position between the fixed position and the release position.
3 Assignments
0 Petitions
Accused Products
Abstract
A portable electrical tool includes a tip tool; a cylindrical housing accommodating a motor including a chuck attachably and detachably holding the tip tool at tip end of a rotation shaft; a base including a surface plate which slides on an upper surface of work material, and which allows the tip tool to protrude from the surface plate downwardly, a cylindrical portion including a cutout portion, and a lever having a cam surface, and rotatable to a fixed position and a release position. When the lever is in the fixed position, a gap at the cutout portion is narrowed to stop movement of the cylindrical housing. When the lever is in the release position, the cylindrical housing is movable by weight in the cylindrical portion. The tool includes a stopper to stop a rotation of the lever between the fixed position and the release position.
33 Citations
8 Claims
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1. A portable electrical tool comprising:
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a tip tool; a cylindrical housing accommodating a motor including a chuck attachably and detachably holding the tip tool at a tip end of a rotation shaft; a base including; a surface plate which slides on an upper surface of work material, and which allows the tip tool to protrude from the surface plate downwardly; a cylindrical portion including a cutout portion to have a substantially C-shaped cross section; and a lever having a cam surface, and rotatable to a fixed position and a release position, wherein when the lever is in the fixed position, a gap at the cutout portion is narrowed to stop movement of the cylindrical housing in the cylindrical portion, wherein when the lever is in the release position, the cylindrical housing is movable by its own weight in the cylindrical portion, and wherein the portable electric tool further includes a stopper which can stop a rotation of the lever at a position between the fixed position and the release position. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A portable electric tool comprising:
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a tip tool; a cylindrical housing accommodating a motor including a chuck attachably and detachably holding the tip tool at tip end of a rotation shaft; a base including; a surface plate which slides on an upper surface of work material, and which allows the tip tool to protrude from the surface plate downwardly; a cylindrical portion including a cutout portion to have a substantially C-shaped cross section; and a lever fixing the cylindrical housing to the base, and having a cam surface, wherein the lever can be positioned in either one of a first fixed state at a fixed position, a second released state at a released position, and a third state between the first state and the second state in which the lever is stopped by a stopper at a position between the fixed and released positions. - View Dependent Claims (8)
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Specification