DE3922849A1 - Cutting indicator for circular hand-saw - uses laser beam to guide blade precisely around cutting pattern - Google Patents

Cutting indicator for circular hand-saw - uses laser beam to guide blade precisely around cutting pattern

Info

Publication number
DE3922849A1
DE3922849A1 DE19893922849 DE3922849A DE3922849A1 DE 3922849 A1 DE3922849 A1 DE 3922849A1 DE 19893922849 DE19893922849 DE 19893922849 DE 3922849 A DE3922849 A DE 3922849A DE 3922849 A1 DE3922849 A1 DE 3922849A1
Authority
DE
Germany
Prior art keywords
saw
laser beam
saw blade
base plate
cutting
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
DE19893922849
Other languages
German (de)
Inventor
Rudolf Groeger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Karl M Reich Maschinenfabrik GmbH
Original Assignee
Karl M Reich Maschinenfabrik GmbH
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 Karl M Reich Maschinenfabrik GmbH filed Critical Karl M Reich Maschinenfabrik GmbH
Priority to DE19893922849 priority Critical patent/DE3922849A1/en
Priority to CH231790A priority patent/CH682057A5/de
Priority to AT148790A priority patent/AT398182B/en
Publication of DE3922849A1 publication Critical patent/DE3922849A1/en
Withdrawn legal-status Critical Current

Links

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
    • B23D59/00—Accessories specially designed for sawing machines or sawing devices
    • B23D59/001—Measuring or control devices, e.g. for automatic control of work feed pressure on band saw blade
    • B23D59/002—Measuring or control devices, e.g. for automatic control of work feed pressure on band saw blade for the position of the saw blade
    • B23D59/003—Indicating the cutting plane on the workpiece, e.g. by projecting a laser beam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
    • B23Q17/22—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring existing or desired position of tool or work
    • B23Q17/2233—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring existing or desired position of tool or work for adjusting the tool relative to the workpiece
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B9/00—Portable power-driven circular saws for manual operation
    • B27B9/02—Arrangements for adjusting the cutting depth or the amount of tilting

Abstract

A circular hand saw has a drive housing (3) for electrical driving of the saw blade (1) rotatably mounted on a base plate (5). A laser diode (10) is positioned on the base plate. The laser-diodes beam (13) is projected onto the surface (14) of the workpiece (4) to guide the saw blade (1) precisely along the line of the pattern to be cut. USE/ADVANTAGE - Direct precise control of a saw blade around a cutting pattern. Sharply defines pattern not affected by outside influences.

Description

Die vorliegende Erfindung betrifft einen Schnittzeiger für Handkreissägen gemäß Oberbegriff von Anspruch 1.The present invention relates to a sectional pointer for Circular saws according to the preamble of claim 1.

Zum genauen Führen einer Handkreissäge entlang des Anrisses auf einem Werkstück ist es bekannt, in einem Ausschnitt der Grundplatte der Handkreissäge eine mit dieser verbundenen und mit dem Sägeblatt fluchtenden metallischen Leiste vorzusehen, die in der Nähe der Werkstückoberfläche der Anrißlinie entlang­ geführt wird.For precise guidance of a circular saw along the crack on a workpiece it is known in a section of the Base plate of the circular saw connected to this and with the metal bar aligned with the saw blade, the near the workpiece surface along the scribe line to be led.

Da diese Leiste vor dem Sägeblatt angeordnet sein muß, bedingt sie eine Vergrößerung und damit erhöhten Platzbedarf der Grund­ platte. Die Leiste liegt nicht genau auf der Werkstückoberfläche auf, so daß Führungsfehler auftreten können. Dies macht sich besonders unangenehm bei Schrägschnitten bemerkbar, bei denen sich die Leiste weiter von der Werkstückoberfläche abheben kann. Es besteht auch die Gefahr des Verbiegens der Leiste und Schmutz, der sich auf dieser absetzen kann, kann eine genaue Führung der Handkreissäge beeinträchtigen.Since this bar must be arranged in front of the saw blade, conditionally an increase and thus increased space requirements the reason plate. The bar is not exactly on the workpiece surface on so that management errors can occur. This is clear particularly noticeable with bevel cuts where the bar can stand out further from the workpiece surface. There is also a risk of the ledge bending and dirt, who can settle on this, can lead the Impact circular saw.

Aufgabe der vorliegenden Erfindung ist daher die Schaffung eines Schnittzeigers der eingangs genannten Art, der eine genaue Kontrolle unmittelbar auf der Werkstückoberfläche und durch eine scharfe Begrenzung eine genaue Anlage an der Anrißlinie ermöglicht und der gegen äußere Einflüsse möglichst unempfindlich ist. The object of the present invention is therefore to create a Section pointer of the type mentioned, which is a precise control directly on the workpiece surface and through a sharp Limitation enables an exact contact on the scribe line and which is as insensitive as possible to external influences.  

Diese Aufgabe wird erfindungsgemäß gelöst durch das Merkmal im Kennzeichnen des Anspruchs 1.This object is achieved by the feature in characterizing claim 1.

Durch die Verwendung eines Laserstrahls, der unmittelbar auf die Werkstückoberfläche projiziert wird, ist ein genaues Anfahren der Anrißlinie möglich. Die Länge des Strahls und die Schärfeabbildung auf der Werkstückoberfläche erlaubt es, die Handkreissäge genau der Anrißlinie entlangzuführen. Eine unmittelbare Kontrolle des Sägeblatts ist nicht mehr nötig, das bedeutet, daß dieses vollständig abgedeckt werden kann, womit sich die Sicherheit beim Arbeiten mit der Handkreis­ säge wesentlich erhöht.By using a laser beam that is directly on the workpiece surface is projected is a precise approach the scribe line possible. The length of the beam and the focus image on the workpiece surface allows the circular saw to be exactly the Lead along the scribe line. Immediate control of the saw blade is no longer necessary, which means that it is completely covered can be, which increases safety when working with the hand circle saw significantly increased.

Zur Erzeugung des Laserstrahls kann zweckmäßigerweise eine Quarz- Laserdiode verwendet werden, die einen Laserstrahl im sichtbaren Lichtwellenbereich erzeugt.In order to generate the laser beam, a quartz Laser diodes are used that have a laser beam in the visible Light wave area generated.

Die erfindungsgemäße Anwendung des Laserstrahls wird im folgenden anhand einer Ringkreissäge beschrieben. Es ist jedoch auch möglich, den Laserstrahl als Schnittzeiger bei Handkreissägen mit vollem Blatt sowie bei anderen Elektrowerkzeugen anzuwenden, die bei der Bearbeitung des Werkstücks einer Anrißlinie entlanggeführt werden müssen.The application of the laser beam according to the invention is as follows described using a circular saw. However, it is also possible the laser beam as a cut pointer in circular saws with a full blade as well as with other power tools that are used during machining of the workpiece must be guided along a scribe line.

Im folgenden ist ein Ausführungsbeispiel der Erfindung unter Bezug­ nahme auf die Zeichnungen näher beschrieben. Es zeigtThe following is an embodiment of the invention with reference took described in more detail on the drawings. It shows

Fig. 1 Handkreissäge mit Schnittzeiger, von der Seite. Fig. 1 circular saw with cut pointer, from the side.

Fig. 2 Handkreissäge von vorne. Fig. 2 circular saw from the front.

Bei der in Fig. 1 dargestellten, als Ringkreissäge ausgebildeten Handkreissäge ist das ringförmige Sägeblatt 1 in bekannter Weise durch einen Elektromotor 2 antreibbar in einem Antriebsgehäuse 3 gelagert. In the case of the hand-held circular saw shown in FIG. 1, which is designed as a circular circular saw, the annular saw blade 1 is mounted in a known manner in a drive housing 3 so as to be drivable by an electric motor 2 .

Zum Aufsetzen der Handkreissäge auf ein zu zersägendes Werkstück 4 dient eine Grundplatte 5, an der das Antriebsgehäuse 3 sowohl um eine zur Ebene des Sägeblatts 1 senkrechten Achse 6 als auch zu einer dazu parallelen Achse 7 schwenkbar gelagert ist. Zur Führung von Antriebs­ gehäuse 3 dient dazu eine Lagerkonsole 8, die an der Grundplatte 5 um die Achse 7 schwenkbar gelagert ist.A base plate 5 , on which the drive housing 3 is pivotably mounted both about an axis 6 perpendicular to the plane of the saw blade 1 and about an axis 7 parallel thereto, serves to place the hand-held circular saw on a workpiece 4 to be sawn. To guide the drive housing 3 serves a bearing bracket 8 which is pivotally mounted on the base plate 5 about the axis 7 .

Mit der Konsole 8 ist über eine Winkelleiste 9 eine Laserdiode 10 verbunden, wobei die Winkelleiste 9 Längsschlitze 11 aufweist, so daß sie mit Schrauben 12 einstellbar an der Lagerkonsole 8 befestigbar ist.With the console 8, a laser diode 10 is connected via an angle bar 9, wherein the angle bar 9 has longitudinal slots 11, so that it at the bearing bracket 8 is fastened with screws 12 adjustable.

Beim Aufsetzen der Handkreissäge auf das Werkstück 4 richtet sich der Laserstrahl 13 schräg gegen die Oberfläche 14 von Werkstück 4, so daß er von dieser Oberfläche 14 abgelenkt und nach vorne ver­ längert wird. Durch ein Gelenk 15 in der Winkelleiste 9 ist es möglich, die Schrägstellung der Laserdiode 10 zu verändern.When placing the hand-held circular saw on the workpiece 4 , the laser beam 13 is directed obliquely against the surface 14 of workpiece 4 , so that it is deflected from this surface 14 and lengthened ver forward. A hinge 15 in the angle bar 9 makes it possible to change the inclined position of the laser diode 10 .

Bei Fig. 2 ist eine Schrägstellung der Handkreissäge zur Ausführung eines Schrägschnittes strichpunktiert angedeutet. Mit der Schräg­ stellung der Lagerkonsole 8 bewegt sich auch die Laserdiode 10 in eine jeweils mit dem Sägeblatt 1 fluchtenden Lage. Damit ist ge­ währleistet, daß der Sägeschnitt auf der Oberfläche 14 bei jeder Schrägstellung von Sägeblatt 1 vom Laserstrahl 13 genau angezeigt wird.In FIG. 2, an inclination of the circular saw is indicated by dash-dotted lines to perform a helical cut. With the inclined position of the bearing bracket 8 , the laser diode 10 moves into a position in each case aligned with the saw blade 1 . This ensures that the saw cut on the surface 14 is precisely displayed by the laser beam 13 at every inclination of the saw blade 1 .

Claims (5)

1. Schnittzeiger für Handkreissägen mit einem Antriebsgehäuse für das elektrisch antreibbare Sägeblatt, das auf einer Grund­ platte schwenkbar gelagert ist und mit dem ein mit dem Sägeblatt fluchtendes Anzeigemittel für den Sägeschnitt verbunden ist, dadurch gekennzeichnet, daß als Anzeige­ mittel ein auf die Oberfläche (14) des Werkstücks (4) pro­ jizierter, mit der Handkreissäge mitbewegter Laserstrahl (13) vorgesehen ist.1.Cutting pointer for circular saws with a drive housing for the electrically drivable saw blade, which is pivotally mounted on a base plate and with which a sawing means aligned with the saw blade is connected for the sawing cut, characterized in that as a display means one on the surface ( 14 ) of the workpiece ( 4 ) per projected laser beam ( 13 ) which is moved with the hand-held circular saw. 2. Schnittzeiger nach Anspruch 1, dadurch gekenn­ zeichnet, daß zur Erzeugung des Laserstrahls (13) eine an der Grundplatte (5) angeordnete Laserdiode (10) vorgesehen ist.2. Section pointer according to claim 1, characterized in that a laser diode ( 10 ) arranged on the base plate ( 5 ) is provided for generating the laser beam ( 13 ). 3. Schnittzeiger nach Anspruch 2, dadurch gekenn­ zeichnet, daß die Laserdiode (10) mit einer Lagerkonsole (8) für das Antriebsgehäuse (3) verbunden ist, die an der Grundplatte (5) um eine zur Ebene des Sägeblatts (1) parallelen Achse (7) schwenkbar gelagert ist.3. Cut pointer according to claim 2, characterized in that the laser diode ( 10 ) with a bearing bracket ( 8 ) for the drive housing ( 3 ) is connected to the base plate ( 5 ) about an axis parallel to the plane of the saw blade ( 1 ) ( 7 ) is pivotally mounted. 4. Schnittzeiger nach Anspruch 3, dadurch gekenn­ zeichnet, daß die Laserdiode (10) verschiebbar und fest­ stellbar an der Lagerkonsole (8) angeordnet ist.4. Section pointer according to claim 3, characterized in that the laser diode ( 10 ) is arranged displaceably and fixedly on the bearing bracket ( 8 ). 5. Schnittzeiger nach einem der Ansprüche 2 bis 4, dadurch gekennzeichnet, daß die Laserdiode (10) schwenkbar an der Grundplatte (5) angeordnet ist.5. Cut pointer according to one of claims 2 to 4, characterized in that the laser diode ( 10 ) is arranged pivotably on the base plate ( 5 ).
DE19893922849 1989-07-12 1989-07-12 Cutting indicator for circular hand-saw - uses laser beam to guide blade precisely around cutting pattern Withdrawn DE3922849A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE19893922849 DE3922849A1 (en) 1989-07-12 1989-07-12 Cutting indicator for circular hand-saw - uses laser beam to guide blade precisely around cutting pattern
CH231790A CH682057A5 (en) 1989-07-12 1990-07-11
AT148790A AT398182B (en) 1989-07-12 1990-07-12 CUTTING POINTER FOR CIRCULAR SAWS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19893922849 DE3922849A1 (en) 1989-07-12 1989-07-12 Cutting indicator for circular hand-saw - uses laser beam to guide blade precisely around cutting pattern

Publications (1)

Publication Number Publication Date
DE3922849A1 true DE3922849A1 (en) 1991-01-24

Family

ID=6384773

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19893922849 Withdrawn DE3922849A1 (en) 1989-07-12 1989-07-12 Cutting indicator for circular hand-saw - uses laser beam to guide blade precisely around cutting pattern

Country Status (3)

Country Link
AT (1) AT398182B (en)
CH (1) CH682057A5 (en)
DE (1) DE3922849A1 (en)

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0504745A1 (en) * 1991-03-16 1992-09-23 Robert Bosch Gmbh Hand-tool with guide-beam
US5461790A (en) * 1994-02-16 1995-10-31 Olstowski; Franek Circular saws with laser guides for more precise movement during cutting
US5675899A (en) * 1996-05-28 1997-10-14 Webb; James Rotary saw with laser beam alignment
EP0985481A2 (en) * 1998-09-11 2000-03-15 Black & Decker Inc. Jig saw and dual position shoe
WO2002083360A1 (en) * 2001-04-18 2002-10-24 Newfrey Llc Positioning and/or assembly aid and corresponding method
US6584695B1 (en) * 2002-01-02 2003-07-01 Chin-Chin Chang Laser alignment device of a circular saw
GB2387808A (en) * 2002-04-23 2003-10-29 Chervon Internat Trading Co Lt Power saw with laser alignment system
GB2388571A (en) * 2002-05-14 2003-11-19 Chervon Internat Trading Co Lt Circular saw with laser alignment system
WO2004011212A1 (en) * 2002-07-30 2004-02-05 Gmca Pty Ltd Laser line generator and power tool
GB2393684A (en) * 2002-12-16 2004-04-07 Gmca Pty Ltd Laser line generator and power tool
US6755107B2 (en) 2001-05-18 2004-06-29 One World Technologies Lmt. Miter saw having a light beam alignment system
WO2006023642A2 (en) * 2004-08-18 2006-03-02 Black & Becker Inc. Circular saw with laser and protractor
EP1693136A1 (en) * 2005-02-16 2006-08-23 Techtronic Industries Co., Ltd. Alignment guide for a saw
US7096587B2 (en) 2001-09-07 2006-08-29 Hitachi Koki Co., Ltd. Portable circular power saw with optical alignment
US7430810B2 (en) 2004-08-18 2008-10-07 Black & Decker Inc. Laser square protractor kit
US7493700B2 (en) 2003-02-17 2009-02-24 Siegfried Isele Power saw comprising a display device
US8276281B2 (en) 2005-09-30 2012-10-02 Positec Power Tools (Suzhou) Co., Ltd. Circular saw
US8359960B2 (en) 1999-02-05 2013-01-29 Hitachi Koki Co., Ltd. Cutter with laser generator that irradiates cutting position on workpiece to facilitate alignment of blade with cutting position
US9162298B2 (en) 2013-03-07 2015-10-20 Rexon Industrial Corp., Ltd. Laser alignment device for circular saw
CN108858474A (en) * 2018-06-29 2018-11-23 池州市德聚软件开发有限公司 A kind of cutting machine producing Furniture panel

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3621525A1 (en) * 1985-06-29 1987-01-08 Amada Co Ltd CUTTER
US4833782A (en) * 1987-06-01 1989-05-30 Robert E. Strauss Saber saw tracing light

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3621525A1 (en) * 1985-06-29 1987-01-08 Amada Co Ltd CUTTER
US4833782A (en) * 1987-06-01 1989-05-30 Robert E. Strauss Saber saw tracing light

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0504745A1 (en) * 1991-03-16 1992-09-23 Robert Bosch Gmbh Hand-tool with guide-beam
US5461790A (en) * 1994-02-16 1995-10-31 Olstowski; Franek Circular saws with laser guides for more precise movement during cutting
US5675899A (en) * 1996-05-28 1997-10-14 Webb; James Rotary saw with laser beam alignment
EP0985481A2 (en) * 1998-09-11 2000-03-15 Black & Decker Inc. Jig saw and dual position shoe
EP0985481A3 (en) * 1998-09-11 2001-10-31 Black & Decker Inc. Jig saw and dual position shoe
CN1111462C (en) * 1998-09-11 2003-06-18 布莱克-德克尔公司 Improved narrow saw blade machine saw
US8770076B2 (en) 1999-02-05 2014-07-08 Hitachi Koki Co., Ltd. Cutter with laser generator that irradiates cutting position on workpiece to facilitate alignment of blade with cutting position
US8359960B2 (en) 1999-02-05 2013-01-29 Hitachi Koki Co., Ltd. Cutter with laser generator that irradiates cutting position on workpiece to facilitate alignment of blade with cutting position
WO2002083360A1 (en) * 2001-04-18 2002-10-24 Newfrey Llc Positioning and/or assembly aid and corresponding method
US6755107B2 (en) 2001-05-18 2004-06-29 One World Technologies Lmt. Miter saw having a light beam alignment system
DE10240123B4 (en) * 2001-09-07 2008-11-27 Hitachi Koki Co., Ltd. Portable motorized circular saw with optical alignment
US7096587B2 (en) 2001-09-07 2006-08-29 Hitachi Koki Co., Ltd. Portable circular power saw with optical alignment
US6584695B1 (en) * 2002-01-02 2003-07-01 Chin-Chin Chang Laser alignment device of a circular saw
GB2387808A (en) * 2002-04-23 2003-10-29 Chervon Internat Trading Co Lt Power saw with laser alignment system
US7131206B2 (en) 2002-04-23 2006-11-07 Chervon International Trading Co., Ltd. Jig saw with laser alignment system
GB2387808B (en) * 2002-04-23 2005-06-22 Chervon Internat Trading Co Lt Power saw
GB2388571B (en) * 2002-05-14 2005-10-19 Chervon Internat Trading Co Lt Cicular saw with laser alignment system
GB2388571A (en) * 2002-05-14 2003-11-19 Chervon Internat Trading Co Lt Circular saw with laser alignment system
WO2004011212A1 (en) * 2002-07-30 2004-02-05 Gmca Pty Ltd Laser line generator and power tool
GB2393684A (en) * 2002-12-16 2004-04-07 Gmca Pty Ltd Laser line generator and power tool
US7493700B2 (en) 2003-02-17 2009-02-24 Siegfried Isele Power saw comprising a display device
WO2006023642A3 (en) * 2004-08-18 2006-12-28 Black & Becker Inc Circular saw with laser and protractor
US7430810B2 (en) 2004-08-18 2008-10-07 Black & Decker Inc. Laser square protractor kit
WO2006023642A2 (en) * 2004-08-18 2006-03-02 Black & Becker Inc. Circular saw with laser and protractor
EP1693136A1 (en) * 2005-02-16 2006-08-23 Techtronic Industries Co., Ltd. Alignment guide for a saw
US8276281B2 (en) 2005-09-30 2012-10-02 Positec Power Tools (Suzhou) Co., Ltd. Circular saw
US9162298B2 (en) 2013-03-07 2015-10-20 Rexon Industrial Corp., Ltd. Laser alignment device for circular saw
CN108858474A (en) * 2018-06-29 2018-11-23 池州市德聚软件开发有限公司 A kind of cutting machine producing Furniture panel

Also Published As

Publication number Publication date
CH682057A5 (en) 1993-07-15
ATA148790A (en) 1994-02-15
AT398182B (en) 1994-10-25

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