Power tool with a linear motor
AssigneeHitachi, Ltd.
InventorsHoung Joong Kim, Shigeru Shinohara
Life of this patent
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Abstract
A power tool with a linear motor is disclosed. The linear motor has a movable element installing a front tool at its one end and having magnetic poles installed at a fixed pitch along the direction of the movement, magnetic pole teeth installed in opposition to each other and at a fixed pitch along the direction of the movement in a vertical direction of movable element, and a coil for exciting the magnetic pole teeth so that the adjacent magnetic pole teeth and opposed magnetic pole teeth may becomes different poles, respectively. The power tool further has a control circuit for reciprocating the movable element by exciting the coil to work something by using the front tool in the process of this reciprocating movement.
Claims12
A power tool with a linear motor:
- wherein said linear motor comprising;
- a movable element installing a front tool at its one end and having magnetic poles installed at a fixed pitch along the direction of the movement,
- magnetic pole teeth installed in opposition to each other and at a fixed pitch along the direction of the movement in a vertical direction of movable element, and
- a coil for exciting the magnetic pole teeth so that the adjacent magnetic pole teeth and opposed magnetic pole teeth may becomes different poles, respectively,
- further comprising a control circuit for reciprocating said movable element by exciting said coil to work something by using the front tool in the process of this reciprocating movement.
Dependencies are inferred from the claim text.