Hand-held power jigsaw

Abstract

A hand-held jigsaw includes a saw blade and control element for automating a tracking the saw blade, the hand-held jigsaw, or both along layout lines. A sensor, preferably a camera unit, detects a layout line provided on a work piece.

1 . A hand-held jigsaw, comprising:
 a saw blade;   control means for automating a tracking of an element selected from the group consisting of a saw blade, the hand-held jigsaw, and both along layout lines; and   a sensor for detecting a layout line provided on a work piece, wherein the sensor is configured to detect individual points of a previously drawn line.   
     
     
         2 . The hand-held jigsaw as recited in  claim 1 , wherein the sensor is a sensor selected from the group consisting of a contrast sensor unit, an eddy current sensor unit and both. 
     
     
         3 . The hand-held jigsaw as recited in  claim 2 , wherein the contrast sensor unit or the eddy current sensor unit is configured to interpolate an actual path curve based on the detected points. 
     
     
         4 . The hand-held jigsaw as recited in  claim 3 , wherein the contrast sensor unit or the eddy current sensor is configured to adopt a saw blade angle as a function of an overlaid user guidance of the hand-held jigsaw. 
     
     
         5 . A hand-held jigsaw, comprising:
 a saw blade;   control means for automating a tracking of an element selected from the group consisting of a saw blade, the hand-held jigsaw, and both along layout lines; and   a sensor for detecting a layout line provided on a work piece, wherein the sensor is a sensor selected from the group consisting of a contrast sensor unit, an eddy current sensor unit and both.   
     
     
         6 . The hand-held jigsaw as recited in  claim 5 , further comprising a processor unit that is configured to perform a process selected from the group consisting of generating control signals, transmitting control signals, and both to an actuator unit for an adjustment of a saw blade angle. 
     
     
         7 . The hand-held jigsaw as recited in  claim 6 , wherein the actuator unit adapts the saw blade angle as a function of an overlaid user guidance of a hand-held jigsaw. 
     
     
         8 . The hand-held jigsaw as recited in  claim 6 , wherein the actuator unit is a mechanical/actuator system for adjusting the saw blade angle of a saw blade. 
     
     
         9 . The hand-held jigsaw as recited in  claim 5 , further comprising optical mouse sensors for determining a speed and a movement direction. 
     
     
         10 . The hand-held jigsaw as recited in  claim 5 , further comprising means for comparing individual camera images to determine an advancing speed. 
     
     
         11 . The hand-held jigsaw as recited in  claim 5 , further comprising an actuator with a regulator. 
     
     
         12 . The hand-held jigsaw as recited in  claim 11 , wherein the actuator with the regulator is a unit selected from the group consisting of a servo motor, a step motor, and a piezoelectric actuator, and any combination thereof. 
     
     
         13 . The hand-held jigsaw as recited in  claim 1 , wherein means that permit an automation of the element is switchable. 
     
     
         14 . The hand-held jigsaw as recited in  claim 1 , further comprising a display element provided to display a recommended advancing direction. 
     
     
         15 . The hand-held jigsaw as recited in  claim 14 , wherein the display element is selected from the group consisting of LEDs, a display, and both. 
     
     
         16 . The hand-held jigsaw at least as recited in  claim 1 , wherein the saw blade is pivotable and drivable by the control means. 
     
     
         17 . The hand-held jigsaw as recited in  claim 1  or  5 , wherein the hand-held jigsaw is a scrolling jigsaw.