Trigger-brake structure for tool machine
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United States of America Patent
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Jun 21, 2005
Grant Date -
N/A
app pub date -
Apr 7, 2004
filing date -
Apr 7, 2004
priority date (Note) -
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Abstract
A trigger-brake structure for tool machine comprises a trigger device and a brake device arranged in a machine base, in which the trigger device is employed for starting a power switch while the brake device for constraining the power transmission. The trigger-brake structure for tool machine is characterized in that a transmission axle for power transmission is arranged in the machine base; a leverage trigger of the trigger device will apply force to another lever in the brake device when the trigger is rotated to move a self-restoring switch to therefore start the power of the machine base; and, the brake device is comprised of a flange of a spring for receiving a force applied by the trigger through a lever so that the stretch degree of a spring leaf surrounding the transmission axle can be controlled by the trigger device to thereby change the frictional force of contact surface between the spring leaf and the transmission axle.
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