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US 12,582,993 B2Granted
Electrically-driven stone material crushing tool
AssigneeMakita Corporation
InventorsKoichi Yakabe, Hiroki Ikuta, Toshihito Yabunaka
Life of this patent
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Abstract
To provide a construction technique of a stone material crushing tool which can prevent complication of working environment. An electrically-driven stone material crushing tool including a motor having an output shaft, a motion converting mechanism to convert a rotating movement from the output shaft to a linear movement, and a crushing member to crush the stone material by clamping by means of the linear movement of the motion converting mechanism.
Claims9
An electrically-driven stone material crushing tool comprising:
- a motor provided with an output shaft;
- a motion converting mechanism which converts rotating output from the output shaft to linear movement;
- a crushing member which clamps a stone material to be crushed by means of the linear movement;
- a position detecting member that detects a nut interlocking detector at a first position and a second position;
- a controller which controls the motor based on a detected position of the nut interlocking detector;
- and
- a crushing detecting member that detects completion of a stone crushing operation of the stone material,
- wherein in response to a detected completion of the stone crushing operation, and before the nut interlocking detector reaches the second position from the first position, the controller controls the motor in a direction to return the nut interlocking detector to the first position, and
- wherein in response to a detected non-completion of the stone crushing operation, and the nut interlocking detector reaches the second position from the first position, the controller controls the motor in the direction to return the nut interlocking detector to the first position.
6 more elements
Dependencies are inferred from the claim text.