DE3706429A1 - Saw blade with double broaching position - Google Patents

Saw blade with double broaching position

Info

Publication number
DE3706429A1
DE3706429A1 DE19873706429 DE3706429A DE3706429A1 DE 3706429 A1 DE3706429 A1 DE 3706429A1 DE 19873706429 DE19873706429 DE 19873706429 DE 3706429 A DE3706429 A DE 3706429A DE 3706429 A1 DE3706429 A1 DE 3706429A1
Authority
DE
Germany
Prior art keywords
saw blade
saw
double
teeth
row
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Withdrawn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
DE19873706429
Other languages
German (de)
Inventor
Walter Dipl Ing Linder
Urs Dipl Ing Ruepp
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.)
Scintilla AG
Original Assignee
Scintilla AG
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 Scintilla AG filed Critical Scintilla AG
Priority to DE19873706429 priority Critical patent/DE3706429A1/en
Publication of DE3706429A1 publication Critical patent/DE3706429A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23DPLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D61/00Tools for sawing machines or sawing devices; Clamping devices for these tools
    • B23D61/006Oscillating saw blades
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23DPLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D61/00Tools for sawing machines or sawing devices; Clamping devices for these tools
    • B23D61/12Straight saw blades; Strap saw blades
    • B23D61/121Types of set; Variable teeth, e.g. variable in height or gullet depth; Varying pitch; Details of gullet

Landscapes

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

Abstract

There is proposed a saw blade for wood which is for use in compass and sabre saws and is designed particularly for a pendulously oscillating working movement. Greater advance of the saw for lower applied pressure compared with conventional saw blades is achieved by a concave shaping of the row of teeth. <IMAGE>

Description

Stand der TechnikState of the art

Die Erfindung geht von einem Sägeblatt für Holz oder ähnliche Werk­ stoffe nach der Gattung des Hauptanspruchs aus. Bisher wiesen Säge­ blätter für motorisch angetriebene Stich- und Säbelsägen gerade Zahnreihen auf, wie z. B. aus der DE-OS 27 50 969 hervorgeht. Beim Arbeiten mit diesen Sägetypen ist eine gerade Zahlenreihe jedoch in­ sofern suboptimal, da nicht jeder Zahn in gleichem Maße Material ab­ tragen kann. So müßte beim Sägeblatt einer Stich- oder Säbelsäge je­ der Zahn - vom Einspannende des Sägeblatts her gesehen - geringfügig höher sein als sein vor ihm befindlicher Zahn, um in die von seinem Vorgänger ausgeräumte Nut noch tiefer einschneiden zu können. Dieser Effekt wird bei Stich- bzw. Säbelsägen durch einen zuschaltbaren Pendelhub nur unvollkommen erreicht, denn es fehlt an einem Säge­ blatt, das eigens auf die Kinematik des Pendelhubs solcher Hand­ werkzeugmaschinen abgestimmt ist und diesen optimal ausnutzt. The invention relates to a saw blade for wood or similar work substances according to the genus of the main claim. So far, saw saw blades for motorized jigsaws and saber saws straight Rows of teeth, such as B. emerges from DE-OS 27 50 969. At the However, working with these types of saws is a straight line of numbers if suboptimal, since not every tooth cuts material to the same extent can carry. So with a saw blade a jigsaw or saber saw would ever the tooth - from the clamping end of the saw blade - slightly be higher than his tooth in front of him, in order to be in his To be able to cut the previously cleared groove even deeper. This The effect of jigsaws or saber saws can be switched on Pendulum stroke only imperfectly achieved because there is no saw sheet, specifically on the kinematics of the pendulum stroke of such a hand machine tools and is optimally used.  

Vorteile der ErfindungAdvantages of the invention

Diese optimale Abstimmung auf den Bewegungsablauf von Stich- und Säbelsägen mit Pendelhub ist bei der erfindungsgemäßen Anordnung mit dem kennzeichnenden Merkmal des Hauptanspruchs verwirklicht. Durch die einwärts gebogene Form der Verzahnungsseite kommt es in Verbin­ dung mit der Pendelbewegung der Handwerkzeugmaschine zu einer dop­ pelten Ausräumbewegung beim Spanen. Durch diese Anordnung kann bei vergleichsweise geringem Kraftaufwand ein größerer Sägefortschritt erreicht werden als mit geradem Sägeblatt.This optimal adjustment to the movement of stitch and Saber saws with a pendulum stroke is in the arrangement according to the invention realized the characteristic feature of the main claim. By the inwardly curved shape of the toothing side comes into connection with the pendulum movement of the hand tool to a dop pelt clearing movement during cutting. With this arrangement, comparatively little effort a greater saw progress can be achieved than with a straight saw blade.

Zeichnungdrawing

Ausführungsbeispiele der Erfindung sind in den Fig. 1 bis 3 in Seitenansicht dargestellt und in der nachfolgenden Beschreibung näher erläutert.Embodiments of the invention are shown in FIGS. 1 to 3 in side view and explained in more detail in the following description.

Beschreibung der ErfindungDescription of the invention

Wie aus den Figuren ersichtlich, unterscheidet sich das erfindungs­ gemäße Sägeblatt von einem herkömmlichen Sägeblatt mit gerader Zahn­ reihe dadurch, daß die Zahnreihe einwärts gebogen ist.As can be seen from the figures, the invention differs appropriate saw blade from a conventional saw blade with a straight tooth row in that the row of teeth is bent inwards.

Die Rücken des Sägeblatts kann dabei ebenfalls gebogen sein, wie in Fig. 1 dargestellt; oder ab der Einspannstelle zunächst gerade ver­ laufen und nur im vorderen Drittel abgeschrägt sein, wie in Fig. 2 dargestellt. Auch eine Kombination beider Merkmale ist möglich und in Fig. 3 dargestellt.The back of the saw blade can also be curved, as shown in Fig. 1; or run straight from the clamping point and just beveled in the front third, as shown in Fig. 2. A combination of both features is also possible and is shown in FIG. 3.

Entscheidend für die Funktion ist bei diesen, wie auch bei weiteren denkbaren, hier nicht dargestellten Ausführungsformen die Form der Zahnreihe. Durch deren Einwärtskrümmung werden die Zähne in der letzten Hälfte der Aufwärtsbewegung (d. h. in Richtung auf die Ein­ spannstelle des Sägeblatts hin) noch zusätzlich in das Werkstück eingezogen. Bei Sägemaschinen mit Pendelhub verstärkt diese Form der Zahnreihe den durch den Pendelhub erzielten Effekt. Sägemaschinen ohne Pendeleinrichtung können bei Verwendung des erfindungsgemäßen Sägeblatts angenähert in den Genuß der durch den Pendelhub erzielten Vorteile gelangen, die sich in größerem Sägefortschritt bei gerin­ gerer Andrückkraft manifestieren.Decisive for the function is with these as well as with others conceivable embodiments, not shown here, the shape of the Row of teeth. Due to their inward curvature, the teeth in the  last half of the upward movement (i.e. towards the on clamping point of the saw blade) into the workpiece moved in. In the case of sawing machines with a pendulum stroke, this type of Row of teeth the effect achieved by the pendulum stroke. Sawing machines without a pendulum device when using the invention Saw blade approximates the enjoyment achieved by the pendulum stroke Advantages that can be seen in greater sawing progress at gerin manifest greater pressure.

Claims (2)

1. Sägeblatt zur Verwendung in einer Handwerkzeugmaschine mit oszil­ lierender Arbeitsbewegung, dadurch gekennzeichnet, daß die verzahnte Schmalseite des Sägeblatts konkav über dessen Länge gekrümmt ist.1. Saw blade for use in a hand tool with oscillating working movement, characterized in that the toothed narrow side of the saw blade is concavely curved over its length. 2. Sägeblatt nach Anspruch 1, dadurch gekennzeichnet, daß das ge­ samte Sägeblatt in Vorschubrichtung gekrümmt ist, wobei die konkave Seite der Krümmung in Vorschubrichtung weist.2. Saw blade according to claim 1, characterized in that the ge Entire saw blade is curved in the feed direction, the concave Side of the curvature points in the feed direction.
DE19873706429 1987-02-27 1987-02-27 Saw blade with double broaching position Withdrawn DE3706429A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19873706429 DE3706429A1 (en) 1987-02-27 1987-02-27 Saw blade with double broaching position

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19873706429 DE3706429A1 (en) 1987-02-27 1987-02-27 Saw blade with double broaching position

Publications (1)

Publication Number Publication Date
DE3706429A1 true DE3706429A1 (en) 1988-09-08

Family

ID=6321966

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19873706429 Withdrawn DE3706429A1 (en) 1987-02-27 1987-02-27 Saw blade with double broaching position

Country Status (1)

Country Link
DE (1) DE3706429A1 (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4140847A1 (en) * 1991-12-11 1993-06-17 Black & Decker Inc POWERED SAW
DE4316146A1 (en) * 1993-05-14 1994-11-17 Wolfgang Gottbehuet Working method for making a slit, a groove or the like in a body made of plastics and cutting tool for carrying out the said method
US7257900B2 (en) 2002-01-02 2007-08-21 Black & Decker Inc. Canted saw blade
CH703107A1 (en) * 2010-05-06 2011-11-15 Marco Steiger Saw blade for sawing branches and twigs made of wood, has drive motor for moving the saw blade in oscillating manner, where tips of teeth are arranged along concave running line
US20120042765A1 (en) * 2010-08-20 2012-02-23 Kazda Austin J Reciprocating saw blade
DE102004028992B4 (en) * 2004-04-15 2012-12-06 Kanzawa Seiko Co., Ltd. Pruning saw
EP2777856A1 (en) * 2013-03-14 2014-09-17 Irwin Industrial Tool Company Reciprocating saw blade with curved cutting edge
CN104043872A (en) * 2013-03-13 2014-09-17 罗伯特·博世有限公司 Hacksaw blade for a power tool
EP3530393A1 (en) * 2018-02-26 2019-08-28 MPS Sägen GmbH Saw blade with push and pull toothing

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4140847A1 (en) * 1991-12-11 1993-06-17 Black & Decker Inc POWERED SAW
DE4140847B4 (en) * 1991-12-11 2005-02-03 Black & Decker Inc., Newark Powered saw
DE4316146A1 (en) * 1993-05-14 1994-11-17 Wolfgang Gottbehuet Working method for making a slit, a groove or the like in a body made of plastics and cutting tool for carrying out the said method
US7257900B2 (en) 2002-01-02 2007-08-21 Black & Decker Inc. Canted saw blade
DE102004028992B4 (en) * 2004-04-15 2012-12-06 Kanzawa Seiko Co., Ltd. Pruning saw
CH703107A1 (en) * 2010-05-06 2011-11-15 Marco Steiger Saw blade for sawing branches and twigs made of wood, has drive motor for moving the saw blade in oscillating manner, where tips of teeth are arranged along concave running line
US20120042765A1 (en) * 2010-08-20 2012-02-23 Kazda Austin J Reciprocating saw blade
USD936437S1 (en) 2010-08-20 2021-11-23 Milwaukee Electric Tool Corporation Saw blade
US10722961B2 (en) 2010-08-20 2020-07-28 Milwaukee Electric Tool Corporation Reciprocating saw blade
US9827626B2 (en) 2010-08-20 2017-11-28 Milwaukee Electric Tool Corporation Reciprocating saw blade
DE102013204372B4 (en) * 2013-03-13 2014-11-13 Robert Bosch Gmbh Hubsägeblatt for a machine tool
US9707634B2 (en) 2013-03-13 2017-07-18 Robert Bosch Gmbh Hacksaw blade for a power tool
DE102013204372A1 (en) 2013-03-13 2014-09-18 Robert Bosch Gmbh Hubsägeblatt for a machine tool
CN104043872B (en) * 2013-03-13 2018-03-23 罗伯特·博世有限公司 Reciprocating motion saw blade for toolroom machine
CN104043872A (en) * 2013-03-13 2014-09-17 罗伯特·博世有限公司 Hacksaw blade for a power tool
AU2014201567B2 (en) * 2013-03-14 2015-09-24 Irwin Industrial Tool Company Reciprocating saw blade with curved cutting edge
US9757807B2 (en) 2013-03-14 2017-09-12 Irwin Industrial Tool Company Reciprocating saw blade with curved cutting edge
US10343229B2 (en) 2013-03-14 2019-07-09 Black & Decker Inc. Reciprocating saw blade with curved cutting edge
US10857605B2 (en) 2013-03-14 2020-12-08 Black & Decker Inc. Reciprocating saw blade with curved cutting edge
EP2777856A1 (en) * 2013-03-14 2014-09-17 Irwin Industrial Tool Company Reciprocating saw blade with curved cutting edge
EP3530393A1 (en) * 2018-02-26 2019-08-28 MPS Sägen GmbH Saw blade with push and pull toothing
DE102018104249A1 (en) * 2018-02-26 2019-08-29 MPS Sägen GmbH Saw blade with push and pull teeth

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