CUTTING MACHINE AND EMERGENCY STOP METHOD OF MOTOR
First Claim
1. A cutting machine including a saw blade that cuts a workpiece being supported on a stand section and a motor for driving the saw blade, the cutting machine comprising:
- a coordinate-specifying section specifying coordinates of an object; and
a stopping section stopping rotation of the motor when the coordinates specified by the coordinate-specifying section satisfy a predetermined condition.
1 Assignment
0 Petitions
Accused Products
Abstract
First, second and third sensors 11, 12 and 13 emit electromagnetic waves, receive electromagnetic waves emitted by the first, second and third sensors 11, 12 and 13 and reflected by an object 9 or electromagnetic wave emitted by the object 9 that received the electromagnetic waves emitted by the first, second and third sensors 11, 12 and 13, and specify distances between themselves and the object 9, respectively, based on time differences between emissions and receptions of the electromagnetic waves, and a control section 3 specifies three-dimensional coordinates of the object 9 based on the distances between the respective sensors 11, 12 and 13 and the object 9, determines whether or not the three-dimensional coordinate of the object 9 falls within a predetermined region and stops a motor when the three-dimensional coordinates of the object 9 falls within the region.
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Citations
15 Claims
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1. A cutting machine including a saw blade that cuts a workpiece being supported on a stand section and a motor for driving the saw blade, the cutting machine comprising:
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a coordinate-specifying section specifying coordinates of an object; and a stopping section stopping rotation of the motor when the coordinates specified by the coordinate-specifying section satisfy a predetermined condition. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An emergency stop method of a motor in a cutting machine including a saw blade that cuts a workpiece supported on a stand section and a motor that drives the saw blade, the emergency stop method comprising the steps of:
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emitting electromagnetic wave by a first sensor section and receiving electromagnetic wave emitted by the first sensor section and reflected by an object or electromagnetic wave emitted by the object that received the electromagnetic wave emitted by the first sensor section; emitting electromagnetic wave by a second sensor section located at a position different from the position of the first sensor section and receiving electromagnetic wave emitted by the second sensor section and reflected by the object or electromagnetic wave emitted by the object that received the electromagnetic wave emitted by the second sensor section; emitting electromagnetic wave by a third sensor section located at a position different from the positions of the first and the second sensor sections and receiving electromagnetic wave emitted by the third sensor section and reflected by the object or electromagnetic wave emitted by the object that received the electromagnetic wave emitted by the third sensor section; specifying distances between the respective first to third sensor sections and the object based on the electromagnetic waves received by the first to third sensor sections; and stopping rotation of the motor when coordinates representing the respective distances specified are in predetermined regions.
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Specification