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Hand-held power jigsaw

a power jigsaw and hand-held technology, applied in the field of hand-held jigsaws, can solve the problems of blades going astray, requiring a large amount of practice, and requiring additional work, and achieve the effect of simple and inexpensive fashion

Inactive Publication Date: 2012-01-05
KAISER HANS +7
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

"The invention is a hand-held jigsaw with a scrolling saw blade that has a control system to automatically track a previously drawn line or layout line. This control system uses sensors and actuators to detect and adjust the orientation of the saw blade and the hand-held jigsaw along the layout line. This results in a more precise and efficient sawing procedure, making it easier for operators to follow the layout lines and create straight cuts without additional guides. The invention also includes a display element to inform the operator of the recommended advancing direction. Overall, the invention simplifies the operation of the hand-held jigsaw and improves the work result."

Problems solved by technology

Without additional guidance-assisting elements, sawing precisely along a predetermined contour with a jigsaw requires a large amount of practice.
This task is additionally complicated by the exertion of transverse forces that cause the saw blade to go astray.
Providing laterally supporting assistance systems or various navigation aids (e.g. lasers) reduces these problems, but does not eliminated them.

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0022]FIG. 1 is a perspective side view of a hand-held jigsaw 9 according to the invention, embodied in the form of a scrolling jigsaw. The hand-held jigsaw 9 includes a machine housing 44, a main handle 46 integrated into the machine housing 44, and a tool socket 48 containing a tool in the form of a rotatably supported saw blade 12. A glide element or glide shoe 8 in the form of a base plate is situated on a side 50 oriented toward the work piece 18 to be machined. This glide shoe 8 permits the hand-held jigsaw 9 to advantageously glide on the work piece 18. On the side 52 oriented away from the saw blade 12, in a region that can be associated with the main handle 46, a guide knob is provided, which is used for an at least manual guidance of the hand-held jigsaw 9. The machine housing 44 also contains a motor that is not shown in detail. On the main handle 46, an actuation switch 56 is provided, which can be used to switch the hand-held jigsaw 9 on and off. In a side region 58 of ...

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PUM

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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.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]The present invention is a divisional application of co-pending U.S. application Ser. No. 12 / 281,442, filed Sep. 2, 2008. The invention described and claimed hereinbelow is also described in German Patent Application DE 10 2006 052 608.5 filed on Nov. 9, 2006. These German Patent Applications, whose subject matter is incorporated here by reference, provides the basis for a claim of priority of invention under 35 U.S.C. 119(a)-(d).BACKGROUND OF THE INVENTION[0002]The present invention is based on a hand-held jigsaw.[0003]For example, the publications US 2005 / 0060896 A1 and US 2005 / 0257985 A1 have disclosed jigsaws that are referred to as “scrolling jigsaws” and in which the saw blade is situated so that in addition to executing the stroke motion, it can be rotated manually independently of the sawing motion. This additional function facilitates the sawing of sinuous cuts.[0004]Without additional guidance-assisting elements, sawing precisel...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): B23D51/02B23D49/16
CPCB23D49/167B23D59/002B23D51/02Y10T83/531Y10T83/828
Inventor KAISER, HANSMARX, KLAUSDELFINI, STEFANONIEHSEN, WOLFGANGKOEDER, THILOFLINSPACH, GUNTERFRANGEN, JOACHIMPLATZER, JOACHIM
Owner KAISER HANS
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