HAND-HELD POWER JIGSAW

• US 20120000080A1
• Filed: 09/13/2011
• Published: 01/05/2012
• Est. Priority Date: 11/09/2006
• Status: Abandoned Application

• Current Assignee: Gunter Flinspach, Hans Kaiser, Joachim Frangen, Joachim Platzer, Klaus Marx, Stefano Delfini, Thilo Koeder, Wolfgang Niehsen
• Original Assignee: Gunter Flinspach, Hans Kaiser, Joachim Frangen, Joachim Platzer, Klaus Marx, Stefano Delfini, Thilo Koeder, Wolfgang Niehsen
• Inventors: Kaiser, Hans, Marx, Klaus, Delfini, Stefano, Niehsen, Wolfgang, Koeder, Thilo, Flinspach, Gunter, Frangen, Joachim, Platzer, Joachim
• Application Number:
  US13/231,139
• Publication Number:
  US 20120000080A1
• Time in Patent Office: Days
• US Class Current: 30/514
• CPC Class Codes: B23D 49/167 with means to adjust the guide plate or with means to adjust the plane in which the saw blade moves
• CPC Class Codes: B23D 51/02 of beds; of guiding arrangements for work-tables or saw carriers; of frames
• CPC Class Codes: B23D 59/002 for the position of the saw blade mounting for swiveling or tilting a circular saw blade B27B5/36; portable power-driven circular saws with adjustment for cutting depth or amount of tilting B27B9/02
• CPC Class Codes: Y10T 83/531 With plural work-sensing means
• CPC Class Codes: Y10T 83/828 With illuminating or viewing means for work

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.

Claims

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.

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.

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.