WO2008095451A1 - Device for guiding the cutting with pad saws - Google Patents

Device for guiding the cutting with pad saws Download PDF

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Publication number
WO2008095451A1
WO2008095451A1 PCT/DE2005/001576 DE2005001576W WO2008095451A1 WO 2008095451 A1 WO2008095451 A1 WO 2008095451A1 DE 2005001576 W DE2005001576 W DE 2005001576W WO 2008095451 A1 WO2008095451 A1 WO 2008095451A1
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WO
WIPO (PCT)
Prior art keywords
cutting
guide
jigsaws
guide elements
jigsaw
Prior art date
Application number
PCT/DE2005/001576
Other languages
German (de)
French (fr)
Inventor
Dennis Bayer
Original Assignee
Dennis Bayer
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dennis Bayer filed Critical Dennis Bayer
Priority to DE112005003832T priority Critical patent/DE112005003832A5/en
Publication of WO2008095451A1 publication Critical patent/WO2008095451A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D51/00—Sawing machines or sawing devices working with straight blades, characterised only by constructional features of particular parts; Carrying or attaching means for tools, covered by this subclass, which are connected to a carrier at both ends
    • B23D51/02—Sawing machines or sawing devices working with straight blades, characterised only by constructional features of particular parts; Carrying or attaching means for tools, covered by this subclass, which are connected to a carrier at both ends of beds; of guiding arrangements for work-tables or saw carriers; of frames

Definitions

  • the invention relates to a device for cutting in jigsaws, which fulfills both the function of a side or parallel stop as well as a circle cutter, comprising a contact plate for guiding the jigsaw on the surface of a workpiece to be machined and one or more of this contact plate down outstanding Guide elements, wherein the guide elements use the gap formed by the sawing in the workpiece to be machined for cutting.
  • circle cutters are known. These are attached to the jigsaw and protrude radially from the side of the saw blade. At the end facing away from the jigsaw is a device which represents the center of the circle to be cut. This device is pressed into the workpiece or attached to the workpiece and the jigsaw is guided on the circular path to be sawn. In such circular cutting also occurs the problem that they do not usually allow to cut arbitrarily large radii.
  • Another disadvantage is that the circle cutter must be fixed in the center of the workpieces to be machined. If it is a delicate material or a surface that is too hard or too rough to fix the circle cutter on, its use is impossible.
  • the object of the invention is to produce a device for attachment to jigsaws, which makes it possible to perform both a straight and a circular cut, the use of this device should neither be bound to external conditions such as the presence of a parallel edge nor should the need to attach the tool to another object other than the jigsaw itself.
  • the object is achieved by a device which has one or more guide elements.
  • These guide elements can be located on the jigsaw inherent investment plate or on an additional investment plate.
  • This device can either be connected irreversibly fixed to the jigsaw or can be fixed and removed, for example by means of screws as needed to the jigsaw.
  • the one or more guide elements are in the cutting direction straight behind the saw blade or laterally offset to this line. During sawing, these guide elements are inserted into the gap created during sawing. A straight alignment in the cutting direction behind the saw blade ensures that the cut runs exactly straight ahead. Non-linear alignment of the guide elements in the cutting direction behind the saw blade ensures that the jigsaw is offset laterally during sawing, with the result that the cut runs in a circle.
  • the guide elements can in this case be mounted on a fixed position on the contact plate, so that you need for straight sawing and for different radii each have their own device. You can also work out the guide elements so that their position relative to the saw blade is variable and the user can thus set whether he wants to saw straight ahead or what radius.
  • the jigsaw (1) On the underside of the jigsaw (1) there is a contact plate (2), which makes it possible to guide the jigsaw on the surface of a workpiece to be machined.
  • a downwardly outstanding guide element (4) is mounted on the contact plate (2).
  • This guide element (4) is laterally offset from the center line (5) of the contact plate (2). If now the guide element (4) is introduced during the sawing in the resulting gap in the workpiece, this has the consequence that the jigsaw (1) is offset laterally.
  • the jigsaw (1) follows a circular path (6), which is determined by the position of the saw blade (3) in relation to guide element (4).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sawing (AREA)

Abstract

The invention relates to a device for guiding the cutting with pad saws (1), which provides the function of both a side or parallel stop and that of a hole cutter, comprisign a support plate (2) for guiding the pad saw (1) on the surface of a workpiece for machining and one or more guide elements (4) extending downwards from said support plate (2), wherein the guide elements (4) use the gap created by the saw in the workpiece for machining to guide the cutting. The guide element(s) (4) extending downwards are arranged to the side of or behind the saw blade (3) in the direction of cutting. With a central arrangement behind the saw blade (3) an exactly straight cutting can be guaranteed. With an offset arrangement to the side behind the saw blade (3) for the guide elements (4), a side offset for the pad saw (1) during sawing can be guaranteed which leads to a circular cutting.

Description

Vorrichtung zur Schnittführung für Stichsägen Apparatus for cutting guide for jigsaws
BESCHREIBUNGDESCRIPTION
Die Erfindung betrifft eine Vorrichtung zur Schnittführung bei Stichsägen, welche sowohl die Funktion eines Seiten- oder Parallelanschlages als auch die eines Kreisschneiders erfüllt, aufweisend eine Anlageplatte zur Führung der Stichsäge auf der Oberfläche eines zu bearbeitenden Werkstückes sowie ein oder mehrere von dieser Anlageplatte nach unten herausragende Führungselemente, wobei die Führungselemente den durch das Sägen entstehenden Spalt im zu bearbeitenden Werkstück zur Schnittführung nutzen.The invention relates to a device for cutting in jigsaws, which fulfills both the function of a side or parallel stop as well as a circle cutter, comprising a contact plate for guiding the jigsaw on the surface of a workpiece to be machined and one or more of this contact plate down outstanding Guide elements, wherein the guide elements use the gap formed by the sawing in the workpiece to be machined for cutting.
Im Stand der Technik sind Seiten- oder Parallelanschläge bekannt, welche es ermöglichen, eine Säge parallel zu einer der Seiten des zu bearbeitenden Werkstückes zu führen. Ein solcher Anschlag kann neben Handkreissägen auch in Verbindung mit Stichsägen benutzt werden. Nachteilig hierbei ist, dass die Verwendung eines solchen Anschlages eine in unmittelbarer Nähe (üblicherweise maximal 10 bis 20 cm) und parallel zum gewünschten Schnitt verlaufende Kante des zu bearbeitenden Werkstückes voraussetzt, was in vielen Fällen nicht gegeben ist. Ist eine solche Kante vorhanden, ergibt sich ein weiteres Problem. Anders als bei Handkreissägen, welche sich aufgrund des großen Durchmessers der Sägeblätter recht problemlos geradeaus führen lassen, ist das geradlinige Führen einer Stichsäge trotz Verwendung eines Parallelanschlages problematischer. Dies ist darin begründet, dass Sägeblätter für Stichsägen normalerweise weniger als 1 cm hoch sind und folglich die Stichsäge auch unter Verwendung eines Parallelanschlages dazu neigt, ungewollt Kurven zu sägen.In the prior art side or rip fence are known which make it possible to guide a saw parallel to one of the sides of the workpiece to be machined. Such a stop can be used in addition to circular saws in conjunction with jigsaws. The disadvantage here is that the use of such a stop requires in the immediate vicinity (usually a maximum of 10 to 20 cm) and parallel to the desired cut edge of the workpiece to be machined, which is not given in many cases. If such an edge exists, there is another problem. Unlike circular saws, which can be easily straightforward due to the large diameter of the saw blades, the straight-line guiding a jigsaw despite the use of a rip fence is more problematic. This is because jigsaw blades are normally less than 1 cm high, and consequently the jigsaw also tends to accidentally saw curves using a rip fence.
Weiterhin sind Kreisschneider bekannt. Diese werden an der Stichsäge angebracht und ragen radial seitlich vom Sägeblatt weg. Am der Stichsäge abgewandten Ende befindet sich eine Vorrichtung, welche den Mittelpunkt des zu schneidenden Kreises darstellt. Diese Vorrichtung wird in das Werkstück hineingedrückt oder an dem Werkstück befestigt und die Stichsäge wird auf der zu sägenden Kreisbahn geführt. Bei solchen Kreisschneidem tritt ebenfalls das Problem auf, dass diese es in der Regel nicht ermöglichen, beliebig große Radien zu schneiden. Ein weiterer Nachteil besteht darin, dass der Kreisschneider im Mittelpunkt des zu bearbeitenden Werkstücken befestigt werden muss. Handelt es sich dabei um ein empfindliches Material oder eine Oberfläche, welche zu hart oder zu rau ist, um den Kreisschneider darauf zu fixieren, ist dessen Verwendung unmöglich.Furthermore, circle cutters are known. These are attached to the jigsaw and protrude radially from the side of the saw blade. At the end facing away from the jigsaw is a device which represents the center of the circle to be cut. This device is pressed into the workpiece or attached to the workpiece and the jigsaw is guided on the circular path to be sawn. In such circular cutting also occurs the problem that they do not usually allow to cut arbitrarily large radii. Another disadvantage is that the circle cutter must be fixed in the center of the workpieces to be machined. If it is a delicate material or a surface that is too hard or too rough to fix the circle cutter on, its use is impossible.
Aufgabe der Erfindung ist es, eine Vorrichtung zum Anbringen an Stichsägen herzustellen, welche es ermöglicht, sowohl eine gerade als auch eine kreisförmige Schnittführung durchzuführen, wobei die Verwendung dieser Vorrichtung weder an äußere Gegebenheiten wie das Vorhandensein einer parallelen Kante gebunden sein soll noch soll die Notwendigkeit bestehen, das Hilfsmittel an einem andern Gegenstand außer der Stichsäge selbst, befestigen zu müssen.The object of the invention is to produce a device for attachment to jigsaws, which makes it possible to perform both a straight and a circular cut, the use of this device should neither be bound to external conditions such as the presence of a parallel edge nor should the need to attach the tool to another object other than the jigsaw itself.
Die Aufgabe wird durch eine Vorrichtung gelöst, welche ein oder mehrere Führungselemente aufweist. Diese Führungselemente können sich auf der der Stichsäge zueigenen Anlageplatte oder auf einer zusätzlichen Anlageplatte befinden. Diese Vorrichtung kann entweder irreversibel fest mit der Stichsäge verbunden sein oder kann beispielsweise mittels Schrauben nach Bedarf an der Stichsäge fixiert und abgenommen werden. Das oder die Führungselemente befinden sich in Schnittrichtung geradlinig hinter dem Sägeblatt oder seitlich versetzt zu dieser Linie. Während dem Sägen werden diese Führungselemente in den beim Sägen entstandenen Spalt eingeführt. Bei geradliniger Ausrichtung in Schnittrichtung hinter dem Sägeblatt wird gewährleistet, dass der Schnitt exakt geradeaus verläuft. Bei nicht geradliniger Ausrichtung der Führungselemente in Schnittrichtung hinter dem Sägeblatt wird gewährleistet, dass die Stichsäge während dem Sägen seitlich versetzt wird, was zur Folge hat, dass der Schnitt kreisförmig verläuft.The object is achieved by a device which has one or more guide elements. These guide elements can be located on the jigsaw inherent investment plate or on an additional investment plate. This device can either be connected irreversibly fixed to the jigsaw or can be fixed and removed, for example by means of screws as needed to the jigsaw. The one or more guide elements are in the cutting direction straight behind the saw blade or laterally offset to this line. During sawing, these guide elements are inserted into the gap created during sawing. A straight alignment in the cutting direction behind the saw blade ensures that the cut runs exactly straight ahead. Non-linear alignment of the guide elements in the cutting direction behind the saw blade ensures that the jigsaw is offset laterally during sawing, with the result that the cut runs in a circle.
Die Führungselemente können hierbei an einer fixen Position auf der Anlageplatte angebracht werden, so dass man zum Geradeaussägen und für unterschiedliche Radien jeweils eine eigene Vorrichtung benötigt. Man kann die Führungselemente auch so ausarbeiten, dass deren Position relativ zum Sägeblatt variable ist und der Benutzer somit einstellen kann, ob er geradeaus bzw. welchen Radius er sägen möchte.The guide elements can in this case be mounted on a fixed position on the contact plate, so that you need for straight sawing and for different radii each have their own device. You can also work out the guide elements so that their position relative to the saw blade is variable and the user can thus set whether he wants to saw straight ahead or what radius.
Die Erfindung wird an folgendem Ausführungsbeispiel näher beschrieben. Auf der Unterseite der Stichsäge (1) befindet sich eine Anlageplatte (2), welche es ermöglicht, die Stichsäge auf der Oberfläche eines zu bearbeitenden Werkstückes zu führen. In Schnittrichtung hinter dem Sägeblatt (3) ist auf der Anlageplatte (2) ein nach unten herausragendes Führungselement (4) angebracht. Dieses Führungselement (4) befindet sich seitlich versetzt zur Mittellinie (5) der Anlageplatte (2). Wird nun das Führungselement (4) während dem Sägen in den im Werkstück entstehenden Spalt eingeführt, hat dies zur Folge, dass die Stichsäge (1) seitlich versetzt wird. Als Folge daraus folgt die Stichsäge (1) einer Kreisbahn (6), welche durch die Position des Sägeblattes (3) in Relation zu Führungselement (4) bestimmt wird. The invention will be described in more detail with reference to the following embodiment. On the underside of the jigsaw (1) there is a contact plate (2), which makes it possible to guide the jigsaw on the surface of a workpiece to be machined. In the cutting direction behind the saw blade (3) a downwardly outstanding guide element (4) is mounted on the contact plate (2). This guide element (4) is laterally offset from the center line (5) of the contact plate (2). If now the guide element (4) is introduced during the sawing in the resulting gap in the workpiece, this has the consequence that the jigsaw (1) is offset laterally. As a result, the jigsaw (1) follows a circular path (6), which is determined by the position of the saw blade (3) in relation to guide element (4).

Claims

PATENTANSPRÜCHE
1. Vorrichtung zur Schnittführung bei Stichsägen, dadurch gekennzeichnet, dass diese ein oder mehrere Führungselemente aufweist, welche den beim Sägen entstehenden Spalt im Werkstück zur Schnittführung nutzen.1. A device for cutting guide in jigsaws, characterized in that it comprises one or more guide elements which use the gap formed during sawing in the workpiece for cutting guide.
2. Vorrichtung zur Schnittführung bei Stichsägen nach Anspruch 1 , dadurch gekennzeichnet, dass diese an der der Stichsäge zueigenen Anlageplatte befestigt werden kann.2. A device for cutting in jigsaws according to claim 1, characterized in that it can be attached to the jigsaw inherent investment plate.
3. Vorrichtung zur Schnittführung bei Stichsägen nach Anspruch 1 , dadurch gekennzeichnet, dass sich das oder die Führungselemente auf einer zusätzlichen Anlageplatte befinden, welche zur Führung der Stichsäge auf der Oberfläche eines zu bearbeitenden Werkstückes dient.3. A device for cutting in jigsaws according to claim 1, characterized in that the one or more guide elements are located on an additional contact plate, which serves to guide the jigsaw on the surface of a workpiece to be machined.
4. Vorrichtung zur Schnittführung bei Stichsägen nach den Ansprüchen 2 oder 3, dadurch gekennzeichnet, dass sich zur Erzeugung einer geraden Schnittführung das oder die Führungselemente geradlinig hinter dem Sägeblatt auf der Schnittlinie befinden.4. A device for cutting guide in jigsaws according to claims 2 or 3, characterized in that are located to produce a straight cutting guide or the guide elements straight behind the saw blade on the cutting line.
5. Vorrichtung zur Schnittführung bei Stichsägen nach den Ansprüchen 2 oder 3, dadurch gekennzeichnet, dass sich zur Erzeugung einer kreisförmigen Schnittführung das oder die Führungselemente nicht geradlinig hinter dem Sägeblatt auf der Schnittlinie befinden.5. A device for cutting guide in jigsaws according to claims 2 or 3, characterized in that the generation of a circular cutting guide or the guide elements are not straight behind the saw blade on the cutting line.
6. Vorrichtung zur Schnittführung bei Stichsägen nach den Ansprüchen 2 oder 3, dadurch gekennzeichnet, dass sich das oder die Führungselemente auf der Anlageplatte variabel positionieren lassen, um zu gewährleisten, dass zwischen Kreisförmiger und gerader Schnittführung gewechselt werden kann.6. A device for cutting in jigsaws according to claims 2 or 3, characterized in that the one or more guide elements can be variably positioned on the abutment plate, to ensure that can be changed between circular and straight cutting guide.
7. Vorrichtung zur Schnittführung bei Stichsägen nach den Ansprüchen 2 oder 3, dadurch gekennzeichnet, dass sich das oder die Führungselemente auf der Anlageplatte variabel positionieren lassen, um zu gewährleisten, dass bei kreisförmiger Schnittführung deren Radius variiert werden kann.7. An apparatus for cutting in jigsaws according to claims 2 or 3, characterized in that can be variably position the or the guide elements on the abutment plate, to ensure that in circular cutting whose radius can be varied.
8. Vorrichtung zur Schnittführung bei Stichsägen nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass diese irreversibel fest mit der Stichsäge verbunden ist.8. A device for cutting in jigsaws according to one of claims 1 to 7, characterized in that it is irreversibly firmly connected to the jigsaw.
9. Vorrichtung zur Schnittführung bei Stichsägen nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass diese vom Benutzer reversibel fest mit der Stichsäge verbunden werden kann. 9. A device for cutting in jigsaws according to one of claims 1 to 7, characterized in that it can be reversibly fixed by the user with the jigsaw.
PCT/DE2005/001576 2004-09-07 2005-09-07 Device for guiding the cutting with pad saws WO2008095451A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112005003832T DE112005003832A5 (en) 2004-09-07 2005-09-07 Apparatus for cutting guide for jigsaws

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200410043564 DE102004043564A1 (en) 2004-09-07 2004-09-07 Cutting guide device for saber saws, has guides units which are inserted into gap that is formed in workpiece during sawing of workpiece, such that sabre saw moves linearly in circular path based on position of blade relative to guide units
DE102004043564.2 2004-09-07

Publications (1)

Publication Number Publication Date
WO2008095451A1 true WO2008095451A1 (en) 2008-08-14

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WO (1) WO2008095451A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2216116B1 (en) * 2009-02-04 2020-02-05 Mafell AG Jig saw

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US10029322B2 (en) 2007-09-21 2018-07-24 Black & Decker Inc. Housing of a cutting tool including blade storage, integral blade guard and motor ventilation pathway
US9981327B2 (en) 2007-09-21 2018-05-29 Black & Decker Inc. Cutting angle indicator in jigsaw housing with dust extraction
US9827623B2 (en) 2007-09-21 2017-11-28 Black & Decker Inc. Control of reciprocation speed and orbital magnitude of a jigsaw with a plurality of material and/or task descriptive icons
US8033026B2 (en) 2007-09-21 2011-10-11 Black & Decker Inc. Adjustable and removable keel assembly and blade guide for a jigsaw
US8578615B2 (en) 2011-09-12 2013-11-12 Black & Decker Inc. Jigsaw with deployable keel and tiltable shoe
US9559628B2 (en) 2013-10-25 2017-01-31 Black & Decker Inc. Handheld power tool with compact AC switch

Citations (10)

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Publication number Priority date Publication date Assignee Title
DE1278728B (en) * 1966-03-25 1968-09-26 Ackermann U Schmitt K G Guide device on a motor-driven jigsaw
US3973324A (en) * 1973-12-04 1976-08-10 Curt Persson Sawing apparatus
US4051597A (en) * 1976-08-24 1977-10-04 Louis Cardoza Saw guide device
US4213242A (en) * 1979-01-22 1980-07-22 Partington Everett J Attachment for saber saw
DE3021801A1 (en) * 1980-06-11 1981-12-24 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt JIGSAW WITH SUPPORT TABLE TO BE ATTACHED TO THE SAW HOUSING
US5279037A (en) * 1993-01-04 1994-01-18 Locksley S. Hall Guide for a portable saw
DE19513077A1 (en) * 1995-04-07 1996-10-10 Scintilla Ag Jigsaw
FR2795990A1 (en) * 1999-07-09 2001-01-12 Amagat Jacques Joseph Audibert Cutting tool for e.g. reciprocating tool has guide follower, which follows cutting element to direct cutting element along required line
DE10300793A1 (en) * 2003-01-13 2004-07-22 Robert Bosch Gmbh Electric hand tool has guide element mounted on underneath of base plate flush with cutting tool to fit into guide groove forming cutting line on workpiece
DE202004014021U1 (en) * 2004-09-07 2004-12-02 Bayer, Dennis Cutting guide device for compass saw has one or more guide elements using existing gap in workpiece to guide cut

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1278728B (en) * 1966-03-25 1968-09-26 Ackermann U Schmitt K G Guide device on a motor-driven jigsaw
US3973324A (en) * 1973-12-04 1976-08-10 Curt Persson Sawing apparatus
US4051597A (en) * 1976-08-24 1977-10-04 Louis Cardoza Saw guide device
US4213242A (en) * 1979-01-22 1980-07-22 Partington Everett J Attachment for saber saw
DE3021801A1 (en) * 1980-06-11 1981-12-24 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt JIGSAW WITH SUPPORT TABLE TO BE ATTACHED TO THE SAW HOUSING
US5279037A (en) * 1993-01-04 1994-01-18 Locksley S. Hall Guide for a portable saw
DE19513077A1 (en) * 1995-04-07 1996-10-10 Scintilla Ag Jigsaw
FR2795990A1 (en) * 1999-07-09 2001-01-12 Amagat Jacques Joseph Audibert Cutting tool for e.g. reciprocating tool has guide follower, which follows cutting element to direct cutting element along required line
DE10300793A1 (en) * 2003-01-13 2004-07-22 Robert Bosch Gmbh Electric hand tool has guide element mounted on underneath of base plate flush with cutting tool to fit into guide groove forming cutting line on workpiece
DE202004014021U1 (en) * 2004-09-07 2004-12-02 Bayer, Dennis Cutting guide device for compass saw has one or more guide elements using existing gap in workpiece to guide cut

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2216116B1 (en) * 2009-02-04 2020-02-05 Mafell AG Jig saw

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DE102004043564A1 (en) 2006-03-09
DE112005003832A5 (en) 2008-11-27

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