EP1279454B1 - Sabre saw with curved track scotch yoke - Google Patents
Sabre saw with curved track scotch yoke Download PDFInfo
- Publication number
- EP1279454B1 EP1279454B1 EP01810739A EP01810739A EP1279454B1 EP 1279454 B1 EP1279454 B1 EP 1279454B1 EP 01810739 A EP01810739 A EP 01810739A EP 01810739 A EP01810739 A EP 01810739A EP 1279454 B1 EP1279454 B1 EP 1279454B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pendulum
- reciprocating
- driving body
- guide surface
- lifting rod
- 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.)
- Expired - Lifetime
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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
- B23D51/16—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 drives or feed mechanisms for straight tools, e.g. saw blades, or bows
Definitions
- the invention relates to a pendulum jigsaw, in particular jigsaw, according to the preamble of claim 1, with a lifting rod serving the attachment of a lifting rod, which has a, with a motor-driven axis of rotation moving entrainment body, coupled guide surface, wherein by moving the driving body the Lifting rod is displaceable in a lifting movement.
- Pendulum hoist saws of the above type are used when performing cutting work.
- a saw blade is releasably secured to a lifting rod, which performs a pendulum-like lifting movement.
- the lifting rod To transform a rotational movement generated by a motor in the pendulum-like lifting movement, the lifting rod on a lifting gate.
- the saw blade In a stroke direction of the lifting rod, the saw blade carries out a material-removing sawing stroke and in the opposite direction an idle stroke. During the idle stroke there is no machining of a material to be processed, for example wood or plastic.
- US 4,272,996 shows a jigsaw with a spindle, at the upper end of a substantially U-shaped slot slot is provided. In this engages to produce an up and down movement of an eccentric of a drive pulley.
- the link slot is aligned transversely to the stroke direction.
- DE 32 22 120 A1 shows a reciprocating saw with a motion conversion device that converts the rotational movement of a motor into a reciprocating motion and a transverse thereto pivoting movement of a tool holder.
- an eccentric pin of a plate gear engages in a U-shaped yoke, which is secured transversely to the stroke direction of an extension of the tool holder.
- An advantage of the known solution is the structurally simple transformation of the circular movement of the driving body in a linear movement. This is conducive to economical production of the pendulum hoist.
- a disadvantage of the known solution is that the linear movement has a sinusoidal velocity profile. From this circumstance results on the one hand the disadvantage a varying, sinusoidal, cutting speed and on the other hand, that the duration of an idle stroke of a shegehubs corresponds. These two events lead to an unsatisfactory sawing performance of the pendulum jigsaw and a reduced service life of the saw blade.
- US 2,206,614 shows an electric arc saw, on the lifting rod an approximately V-shaped gate is provided which is transverse to the stroke direction and engages in an eccentric drive pulley. Upon rotation of the drive pulley, the eccentric rolls back and forth in the link, thereby generating a linear reciprocating motion of the lift rod and a saw blade held thereon.
- No. 5,755,292 shows a device which generates a reciprocating movement of a work spindle by means of compressed air.
- the work spindle is connected to a bow saw.
- No. 1,621,103 shows an electric hammer device with an impact element which repeatedly loads a tool holder with impacts in one working direction.
- the impact element on a curved backdrop into which engages an eccentric pin of a drive pulley.
- the present invention has for its object to provide a pendulum hoist with a lifting rod, which has a high sawing performance and is also economically produced. This object is solved by the features of claim 1.
- this object is achieved in that the entire guide surface in the contact area generated by the coupling with the driving body has a strictly monotonically deviating from a straight line transverse to the stroke direction curve shape, wherein the straight line is transverse to the stroke direction.
- the guide surface guides the driving body, when executing the Sgehubes, with respect to the lifting rod on a advantageously substantially strictly monotonously falling and convex curve shape.
- the thus formed guide surface ensures a higher sawing performance of the pendulum jigsaw.
- the duration of the sowing stroke is longer than that of the idle stroke, which in particular increases the service life and the efficiency of the saw blade.
- a similar configured guide surface is advantageously used to ensure an economical production of the pendulum jigsaw.
- the guide surface guides the driving body in carrying out the sawing stroke relative to the lifting rod on a substantially strictly monotonously rising and concave waveform.
- the curve shape preferably corresponds to an n-th degree polynomial in order to ensure a uniform speed profile at least by sawing stroke.
- This design of the curved shape of the guide surface ensures an approximately optimal and continuous speed profile.
- the curve shape preferably corresponds to a polynomial of the second degree.
- a pendulum hoist according to the invention with a lifting rod 1 serving to fix a saw blade 2 is shown.
- the lifting rod 1 has a guide surface 4 which can be coupled to a driving body 3 which can be moved about a rotation axis R.
- the pendulum hoist has a housing 5, which has a support frame 5a.
- the support frame 5 a is rigidly connected to the housing 5.
- the housing 5 has an integrally molded handle 7. At the lower part of the handle 7 is a switch 8 for switching on and off of the motor 6, which moves the lifting rod 1 by means of the driving body 3 and the guide surface 4 in a pendulum-like lifting movement in a stroke direction H together with a gear transmission 9.
- the lifting rod 1 has over the entire length of a substantially cylindrical outer contour. At one end, this has a tool holder 11, which serves for releasably securing the saw blade 2. At the opposite end region a lifting gate 12 is arranged with the guide surface 4 on the outer contour.
- the lifting gate 12 has a substantially U-shaped cross-section and is configured, for example, as a bending-stamping part.
- the zero position of the lifting rod 2 and thus also the lifting link 12 is defined such that it represents the position by which the lifting rod 2 executes the pendulum-like movement.
- the stroke direction H in which the polegehub performs, shows the positive portion of the Y-axis.
- the X-axis is transverse to the axis of rotation R and perpendicular to the Y-axis.
- the X-axis is oriented such that the driving body 3 moves from the positive portion of the X-axis directly to the positive portion of the Y-axis.
- the rotational angle ⁇ of the driving body 3 is dimensioned by the positive portion of the X-axis.
- the guide surface 4 has a parabolic curve with respect to the Cartesian coordinate system, as is apparent in particular from FIG.
- the curve can also be a polynomial n.
- Grades, such as y a * x n + b * x (n-1) + ... c be.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sawing (AREA)
Description
Die Erfindung betrifft eine Pendelhubsäge, insbesondere Stichsäge, gemäß dem Oberbegriff des Anspruchs 1, mit einer der Befestigung eines Sägeblatts dienenden Hubstange, die eine, mit einem sich um eine motorisch angetriebene Rotationsachse bewegten Mitnahmekörper, koppelbare Führungsfläche aufweist, wobei durch das Bewegen des Mitnahmekörpers die Hubstange in eine Hubbewegung versetzbar ist.The invention relates to a pendulum jigsaw, in particular jigsaw, according to the preamble of
Pendelhubsägen der oben genannten Art finden Anwendung beim Ausführen von Trennarbeiten. Ein Sägeblatt ist lösbar an einer Hubstange festlegbar, die eine pendelartige Hubbewegung ausführt. Zur Transformation einer von einem Motor erzeugten Rotationsbewegung in die pendelartige Hubbewegung weist die Hubstange eine Hubkulisse auf. In einer Hubrichtung der Hubstange führt das Sägeblatt einen Material zerspanenden Sägehub aus und in die entgegengesetzte Richtung einen Leerhub. Im Leerhub findet keine Zerspanung eines zu bearbeitenden Materials, beispielsweise Holz oder Plastik, statt.Pendulum hoist saws of the above type are used when performing cutting work. A saw blade is releasably secured to a lifting rod, which performs a pendulum-like lifting movement. To transform a rotational movement generated by a motor in the pendulum-like lifting movement, the lifting rod on a lifting gate. In a stroke direction of the lifting rod, the saw blade carries out a material-removing sawing stroke and in the opposite direction an idle stroke. During the idle stroke there is no machining of a material to be processed, for example wood or plastic.
US 4,272,996 zeigt eine Stichsäge mit einer Spindel, an deren oberen Ende ein im wesentlichen U-förmiger Kulissenschlitz vorgesehen ist. In diesen greift zur Erzeugung einer Auf- und Abbewegung ein Exzenterzapfen einer Antriebsscheibe ein. Der Kulissenschlitz ist dabei der quer zur Hubrichtung ausgerichtet.US 4,272,996 shows a jigsaw with a spindle, at the upper end of a substantially U-shaped slot slot is provided. In this engages to produce an up and down movement of an eccentric of a drive pulley. The link slot is aligned transversely to the stroke direction.
DE 32 22 120 A1 zeigt eine Säbelsäge mit einer Bewegungsumwandlungseinrichtung, die die Drehbewegung eines Motors in eine Hin- und Herbewegung sowie eine dazu quer gerichtete Schwenkbewegung eines Werkzeughalters umwandelt. Dabei greift ein Exzenterzapfen eines Tellerzahnrades in ein U-förmiges Joch, das quer zur Hubrichtung an einer Verlängerung des Werkzeughalters befestigt ist.DE 32 22 120 A1 shows a reciprocating saw with a motion conversion device that converts the rotational movement of a motor into a reciprocating motion and a transverse thereto pivoting movement of a tool holder. In this case, an eccentric pin of a plate gear engages in a U-shaped yoke, which is secured transversely to the stroke direction of an extension of the tool holder.
Aus der DE 198 19 527 ist eine derartige Pendelhubsäge mit einer motorisch angetriebenen Hubstange bekannt. An einem Ende weist die Hubstange eine Werkzeugaufnahme zum lösbaren Festlegen eines Stichsägenblatts und am gegenüberliegenden Ende ein Flachteil mit einem Führungsloch auf. Im Führungsloch ist ein exzentrisch rotierender Mitnahmekörper gelagert, der über die Führungsfläche mit der Hubstange, insbesondere mit dem Rand des Führungslochs, in Kontakt steht. Die Führungsfläche steht quer zur Hubrichtung der Hubstange, sowie quer zur Rotationsachse des Mitnahmekörpers.From DE 198 19 527 such a pendulum hoist with a motor-driven lifting rod is known. At one end, the lifting rod on a tool holder for releasably securing a jigsaw blade and at the opposite end a flat part with a guide hole. In the guide hole an eccentrically rotating driving body is mounted, which is on the guide surface with the lifting rod, in particular with the edge of the guide hole in contact. The guide surface is transverse to the stroke direction of the lifting rod, as well as transversely to the axis of rotation of the driving body.
Vorteilhaft an der bekannten Lösung ist die konstruktiv einfache Transformation der kreisförmigen Bewegung des Mitnahmekörpers in eine lineare Bewegung. Dies ist einer wirtschaftlichen Herstellung der Pendelhubsäge förderlich.An advantage of the known solution is the structurally simple transformation of the circular movement of the driving body in a linear movement. This is conducive to economical production of the pendulum hoist.
Nachteilig an der bekannten Lösung ist, dass die lineare Bewegung einen sinusförmigen Geschwindigkeitsverlauf aufweist. Aus diesem Umstand ergibt sich einerseits der Nachteil einer variierenden, sinusförmigen, Schnittgeschwindigkeit und andererseits, dass die zeitliche Dauer eines Leerhubs der eines Sägehubs entspricht. Diese beiden Begebenheiten führen zu einer unbefriedigenden Sägeleistung der Pendelhubsäge und einer verminderten Standzeit des Sägeblatts.A disadvantage of the known solution is that the linear movement has a sinusoidal velocity profile. From this circumstance results on the one hand the disadvantage a varying, sinusoidal, cutting speed and on the other hand, that the duration of an idle stroke of a Sägehubs corresponds. These two events lead to an unsatisfactory sawing performance of the pendulum jigsaw and a reduced service life of the saw blade.
US 2,206,614 zeigt eine elektrische Bogensäge, an deren Hubstange eine in etwa V-förmige Kulisse vorgesehen ist, die quer zur Hubrichtung steht und in die ein Exzenter einer Antriebsscheibe eingreift. Bei Rotation der Antriebsscheibe rollt der Exzenter in der Kulisse hin- und her und erzeugt dadurch eine lineare Hin- und Herbewegung der Hubstange und eines daran gehaltenen Sägeblattes.US 2,206,614 shows an electric arc saw, on the lifting rod an approximately V-shaped gate is provided which is transverse to the stroke direction and engages in an eccentric drive pulley. Upon rotation of the drive pulley, the eccentric rolls back and forth in the link, thereby generating a linear reciprocating motion of the lift rod and a saw blade held thereon.
US 5,755,292 zeigt eine Vorrichtung die mittels Pressluft eine Hin- und Herbewegung einer Arbeitsspindel generiert. In einer Ausführungsform ist die Arbeitsspindel dabei mit einer Bogensäge verbunden.No. 5,755,292 shows a device which generates a reciprocating movement of a work spindle by means of compressed air. In one embodiment, the work spindle is connected to a bow saw.
US 1,621,103 zeigt ein elektrisches Hammergerät mit einem Schlagelement, das eine Werkzeugaufnahme wiederkehrend mit Schlägen in eine Arbeitsrichtung beaufschlagt. Hierzu weist das Schlagelement eine gebogene Kulisse auf, in die ein Exzenterzapfen einer Antriebsscheibe eingreift.No. 1,621,103 shows an electric hammer device with an impact element which repeatedly loads a tool holder with impacts in one working direction. For this purpose, the impact element on a curved backdrop into which engages an eccentric pin of a drive pulley.
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, eine Pendelhubsäge mit einer Hubstange zu schaffen, die eine hohe Sägeleistung aufweist und ferner wirtschaftlich herstellbar ist. Diese Aufgabe wird durch die Merkmale des Anspruchs 1 gelöst.The present invention has for its object to provide a pendulum hoist with a lifting rod, which has a high sawing performance and is also economically produced. This object is solved by the features of
Erfindungsgemäss wird die Aufgabe dadurch gelöst, dass die ganze Führungsfläche in dem durch die Kopplung mit dem Mitnahmekörper erzeugten Kontaktbereich eine von einer Geraden quer zur Hubrichtung streng monoton abweichende Kurvenform aufweist, wobei die Gerade quer zur Hubrichtung liegt.According to the invention, this object is achieved in that the entire guide surface in the contact area generated by the coupling with the driving body has a strictly monotonically deviating from a straight line transverse to the stroke direction curve shape, wherein the straight line is transverse to the stroke direction.
Dadurch, dass die Kurvenform streng monoton abweichend von einer Geraden quer zur Hubrichtung ist, besteht die Möglichkeit einerseits den zeitlichen Verlauf von Sägehub und Leerhub zu optimieren und andererseits den Geschwindigkeitsverlauf, insbesondere des Sägehubs, zu optimieren. Durch die Abweichung von der Geraden quer zur Hubrichtung wird ein sinusförmiger Geschwindigkeitsverlauf der Bewegung der Hubstange und somit des Sägeblatts verhindert.Due to the fact that the curve shape is strictly monotone deviating from a straight line transverse to the stroke direction, it is possible on the one hand to optimize the time course of sawing stroke and idle stroke and, on the other hand, to optimize the speed profile, in particular of the sawing stroke. Due to the deviation from the straight line transverse to the stroke direction, a sinusoidal speed profile of the movement of the lifting rod and thus of the saw blade is prevented.
Weitere Ausführungsformen der Erfindung sind den abhängigen Ansprüchen zu entnehmen.Further embodiments of the invention can be found in the dependent claims.
Die Führungsfläche führt den Mitnahmekörper, beim Ausführen des Sägehubes, gegenüber der Hubstange auf einer vorteilhafterweise im wesentlichen streng monoton fallenden und konvexen Kurvenform. Die derart ausgebildete Führungsfläche stellt eine höhere Sägeleistung der Pendelhubsäge sicher. Ausserdem ist die Dauer des Sägehubs länger als die des Leerhubs, was insbesondere die Standzeit und die Effizienz des Sägeblatts erhöht. Beim Ausführen des Leerhubs wird mit Vorteil eine gleichartige ausgestaltete Führungsfläche genutzt, um eine wirtschaftliche Herstellung der Pendelhubsäge zu gewährleisten.The guide surface guides the driving body, when executing the Sägehubes, with respect to the lifting rod on a advantageously substantially strictly monotonously falling and convex curve shape. The thus formed guide surface ensures a higher sawing performance of the pendulum jigsaw. In addition, the duration of the sowing stroke is longer than that of the idle stroke, which in particular increases the service life and the efficiency of the saw blade. When executing the idle stroke a similar configured guide surface is advantageously used to ensure an economical production of the pendulum jigsaw.
In einer weiteren bevorzugten Ausführungsform führt die Führungsfläche den Mitnahmekörper beim Ausführen des Sägehubes gegenüber der Hubstange auf einer im wesentlichen streng monoton steigenden und konkaven Kurvenform.In a further preferred embodiment, the guide surface guides the driving body in carrying out the sawing stroke relative to the lifting rod on a substantially strictly monotonously rising and concave waveform.
Die Kurvenform entspricht vorzugsweise einem Polynom n-ten Grades, um einen gleichmässigen Geschwindigkeitsverlauf zumindest um Sägehub sicherzustellen. Durch diese Auslegung der Kurvenform der Führungsfläche lässt sich ein annähernd optimaler und kontinuierlicher Geschwindigkeitsverlauf sicherstellen.The curve shape preferably corresponds to an n-th degree polynomial in order to ensure a uniform speed profile at least by sawing stroke. This design of the curved shape of the guide surface ensures an approximately optimal and continuous speed profile.
Um einerseits eine annähernd gleichbleibende Geschwindigkeit im Sägehub und andererseits eine möglichst einfache Ausbildung der Hubstange zu gewährleisten, entspricht die Kurvenform vorzugsweise einem Polynom zweiten Grades.On the one hand, to ensure an approximately constant speed in the saw stroke and, on the other hand, the simplest possible design of the lifting rod, the curve shape preferably corresponds to a polynomial of the second degree.
Die Erfindung wird nachstehend anhand eines Ausführungsbeispieles näher erläutert. Es zeigen:
- Fig. 1 eine Darstellung einer Pendelhubsäge mit einer Hubstange im Querschnitt;
- Fig. 2 die in Fig. 1 dargestellte Hubstange vergrössert in einer Seitenansicht;
- Fig. 3 die in Fig. 2 dargestellte Hubstange um 90° verdreht in einer Seitenansicht;
- 1 shows a representation of a pendulum hoist with a lifting rod in cross section.
- Fig. 2 shows the lifting rod shown in Figure 1 enlarged in a side view.
- Fig. 3, the lifting rod shown in Figure 2 rotated by 90 ° in a side view.
In den Fig.1 bis 3 ist eine erfindungsgemässe Pendelhubsäge mit einer, der Befestigung eines Sägeblatts 2 dienenden, Hubstange 1 dargestellt. Die Hubstange 1 weist eine, mit einem sich um eine Rotationsachse R bewegbaren, Mitnahmekörper 3 koppelbare Führungsfläche 4 auf. Zur Lagerung der Hubstange 1 und eines zum Antreiben des Mitnahmekörpers 3 dienenden Motors 6, insbesondere Elektromotors, weist die Pendelhubsäge ein Gehäuse 5 auf, das einen Tragrahmen 5a aufweist. Der Tragrahmen 5a ist starr mit dem Gehäuse 5 verbunden.1 to 3 a pendulum hoist according to the invention with a
Zum Führen der Pendelhubsäge weist das Gehäuse 5 einen einstückig angeformten Handgriff 7 auf. Am Unterteil des Handgriffs 7 ist ein Schalter 8 zum Ein- und Abschalten des Motors 6, der zusammen mit einem Zahnradgetriebe 9 die Hubstange 1 mittels des Mitnahmekörpers 3 und der Führungsfläche 4 in einer pendelartigen Hubbewegung in einer Hubrichtung H bewegt.To guide the pendulum hoist, the
Die Hubstange 1 weist über die gesamte Länge eine im wesentlichen zylinderförmige Aussenkontur auf. An einem Ende weist diese eine Werkzeugaufnahme 11 auf, die zum lösbaren Festlegen des Sägeblatts 2 dient. Am gegenüberliegenden Endbereich ist an der Aussenkontur eine Hubkulisse 12 mit der Führungsfläche 4 angeordnet. Die Hubkulisse 12 weist einen im wesentlichen U-förmigen Querschnitt auf und ist beispielsweise als ein Biege-Stanz-Teil ausgestaltet.The
Zur präziseren Erläuterung der Kurvenform der Führungsfläche 4 ist die in Fig. 1 dargestellte Hubstange in Fig. 2 und 3 nochmals mit einem kartesischen Koordinatensystem dargestellt, dessen Nullpunkt O durch den Schnittpunkt der Aussenkontur 13 der Hubkulisse 12 und der Rotationsachse R definiert ist, wobei sich die Hubstange 1 in einer Nulllage befindet. Die Nulllage der Hubstange 2 und somit auch der Hubkulisse 12 ist derart definiert, dass sie die Lage darstellt, um die die Hubstange 2 die pendelartige Bewegung ausführt. In Hubrichtung H, in welcher der Sägehub ausführt, zeigt der positive Abschnitt der Y-Achse. Die X-Achse verläuft quer zur Rotationsachse R und senkrecht zur Y-Achse. Dabei ist die X-Achse derart orientiert, dass sich der Mitnahmekörper 3 vom positiven Abschnitt der X-Achse direkt auf den positiven Abschnitt der Y-Achse bewegt. Der Drehwinkel α des Mitnahmekörpers 3 ist dabei vom positiven Abschnitt der X-Achse bemessen.For more precise explanation of the curve shape of the guide surface 4, the lifting rod shown in Fig. 1 in Fig. 2 and 3 again shown with a Cartesian coordinate system whose zero point O through the intersection of the
Die Führungsfläche 4 weist im Bezug auf das kartesische Koordinatensystem einen parabelförmigen Kurvenverlauf auf, wie dies insbesondere aus der Fig. 2 hervorgeht. Selbstverständlich kann die Kurve auch ein Polynom n.Grades, wie beispielsweise y=a * xn + b * x(n-1)+ ... c sein.The guide surface 4 has a parabolic curve with respect to the Cartesian coordinate system, as is apparent in particular from FIG. Of course, the curve can also be a polynomial n.Grades, such as y = a * x n + b * x (n-1) + ... c be.
Claims (5)
- Pendulum-action reciprocating saw, in particular jigsaw, having a reciprocating rod (1) serving to attach a saw blade (2), said reciprocating rod having a guide surface (4) which can be coupled to a driving body (3) that is moved about a motor-driven rotation axis (R) wherein, due to the movement of the driving body (3), the reciprocating rod (1) can be caused to perform a reciprocating movement, characterised in that the whole guide surface (4) has, in the contact region generated by the coupling with the driving body (3), a curved form deviating in a precisely monotonic manner from a straight line, wherein the straight line lies transversely to the reciprocating direction.
- Pendulum-action reciprocating saw according to claim 1, characterised in that, on carrying out the sawing stroke, the guide surface (4) guides the driving body (3) along a substantially precisely monotonic falling, convex curve form relative to the reciprocating rod (1).
- Pendulum-action reciprocating saw according to claim 1, characterised in that, on carrying out the sawing stroke, the guide surface (4) guides the driving body (3) along a substantially precisely monotonic rising, concave curve form relative to the reciprocating rod (1).
- Pendulum-action reciprocating saw according to one of the claims 1 to 3, characterised in that the curve form corresponds to an nth degree polynomial.
- Pendulum-action reciprocating saw according to one of the claims 1 to 4, characterised in that the curve form corresponds to a second degree polynomial.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP01810739A EP1279454B1 (en) | 2001-07-26 | 2001-07-26 | Sabre saw with curved track scotch yoke |
| DE50111491T DE50111491D1 (en) | 2001-07-26 | 2001-07-26 | Jigsaw with a lift gate with curved guide surface |
| US10/205,638 US6769188B2 (en) | 2001-07-26 | 2002-07-24 | Pendulum scroll saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP01810739A EP1279454B1 (en) | 2001-07-26 | 2001-07-26 | Sabre saw with curved track scotch yoke |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1279454A1 EP1279454A1 (en) | 2003-01-29 |
| EP1279454B1 true EP1279454B1 (en) | 2006-11-22 |
Family
ID=8184056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP01810739A Expired - Lifetime EP1279454B1 (en) | 2001-07-26 | 2001-07-26 | Sabre saw with curved track scotch yoke |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US6769188B2 (en) |
| EP (1) | EP1279454B1 (en) |
| DE (1) | DE50111491D1 (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10358575B4 (en) * | 2003-12-15 | 2005-12-22 | Hilti Ag | Tool device, in particular motor-driven lifting saw, such as stab or saber saw |
| GB0405729D0 (en) * | 2004-03-15 | 2004-04-21 | Gmca Pty Ltd | Power tool bearing arrangement |
| US7423176B2 (en) * | 2004-04-13 | 2008-09-09 | Cephalon, Inc. | Bicyclic aromatic sulfinyl derivatives |
| 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 |
| US20090077817A1 (en) * | 2007-09-21 | 2009-03-26 | Black & Decker Inc. | Dash-dot laser cutting guide tiltable from a housing for battery replacement |
| US8033026B2 (en) | 2007-09-21 | 2011-10-11 | Black & Decker Inc. | Adjustable and removable keel assembly and blade guide for a jigsaw |
| JP5517109B2 (en) * | 2010-09-30 | 2014-06-11 | 日立工機株式会社 | Reciprocating tool |
| 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 |
| CN106457426B (en) * | 2014-05-23 | 2019-02-22 | 工机控股株式会社 | Reciprocating tool |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1621103A (en) * | 1926-01-20 | 1927-03-15 | Ajax Electric Hammer Corp | Power-driven hammer or riveter |
| US2206614A (en) * | 1939-08-05 | 1940-07-02 | John P O'hern | Power hack saw |
| US4272996A (en) * | 1979-06-19 | 1981-06-16 | Black & Decker Inc. | Scotch yoke having a curved track |
| US4385443A (en) * | 1981-07-24 | 1983-05-31 | Aeg Power Tool Corporation | Sabre saw |
| SE501449C2 (en) * | 1992-11-18 | 1995-02-20 | Goeran Nilsson | Pressure medium driven impact mechanism |
-
2001
- 2001-07-26 DE DE50111491T patent/DE50111491D1/en not_active Expired - Lifetime
- 2001-07-26 EP EP01810739A patent/EP1279454B1/en not_active Expired - Lifetime
-
2002
- 2002-07-24 US US10/205,638 patent/US6769188B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US6769188B2 (en) | 2004-08-03 |
| US20030019112A1 (en) | 2003-01-30 |
| DE50111491D1 (en) | 2007-01-04 |
| EP1279454A1 (en) | 2003-01-29 |
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