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DE668348C - Jigsaw - Google Patents

Jigsaw

Info

Publication number
DE668348C
DE668348C DEH144935D DEH0144935D DE668348C DE 668348 C DE668348 C DE 668348C DE H144935 D DEH144935 D DE H144935D DE H0144935 D DEH0144935 D DE H0144935D DE 668348 C DE668348 C DE 668348C
Authority
DE
Germany
Prior art keywords
fretsaw
blade
jigsaw
width
saw blade
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
Application number
DEH144935D
Other languages
German (de)
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.)
JOSEF HAUNSTETTER SAEGENFABRIK
Original Assignee
JOSEF HAUNSTETTER SAEGENFABRIK
Publication date
Priority to DEH144935D priority Critical patent/DE668348C/en
Application granted granted Critical
Publication of DE668348C publication Critical patent/DE668348C/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27BSAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B19/00Other reciprocating saws with power drive; Fret-saws
    • B27B19/10Fret-saws, i.e. with bilaterally chucked saw blade in a manually-guided bow
    • B27B19/14Fret-saws, i.e. with bilaterally chucked saw blade in a manually-guided bow with hand drive
    • 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
    • B23D51/00Sawing 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
    • B23D51/08Sawing 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 devices for mounting straight saw blades or other tools
    • B23D51/12Sawing 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 devices for mounting straight saw blades or other tools for use with tools, dealt with in this subclass, which are connected to a carrier at both ends, e.g. bows adjustable in length or height
    • B23D51/14Attachment of the tool

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Sawing (AREA)

Description

LaubsägeFretsaw

Die Erfindung betrifft eine weitere Ausbildung der Laubsäge nach Patent 658 081 und besteht darin, daß die schmalen Köpfe des Laubsägeblattes durch Verdrehen desselben hergestellt sind, so daß die Verdickung nicht über die natürliche Breite des Sägeblattes hinausgeht. Es wird damit bezweckt, die Ausführung von fein verzweigten Laubsägedurchbrucharbeiten zu erleichtern, bei denen die Bohrlöcher nicht größer sein dür-■ fen, wie sie der Querschnitt unverstärkter Laubsägeblattenden geringstmöglich erlaubt.The invention relates to a further embodiment of the fretsaw according to patent 658 081 and consists in that the narrow heads of the jigsaw blade by twisting the same are made so that the thickening does not extend beyond the natural width of the saw blade goes out. The purpose of this is to carry out finely branched fretwork breakthrough work to facilitate, where the drill holes may not be ■ larger than the unreinforced cross-section Fret saw blade ends allowed as little as possible.

In der Laubsäge nach Patent 658 081 wirdIn the fretsaw according to patent 658 081 is

bekanntlich ein Laubsägeblatt mit gestauchten schmalen Köpfen angewendet. Beim Stauchen der schmalen Köpfe dieses Laubsägeblattes ergibt sich naturgemäß auch eine Verbreiterung der Breite des Laubsägeblattes, die nachträglich entfernt werden muß, wenn bei Laubsägedurchbrucharbeiten mangels genügenden Zwischenraumes die Bohrlöcher nicht weiter sein können wie für den Durchgang unverdickter Sägeblattenden. Die Anwendung des erfindungsgemäßen Laubsägeblattes mit angedrehten äußeren Endverstärkungen vermeidet besagten Nachteil in der Weise, daß entgegen beim Stauchen von Köpfen, beim Verdrehen der Sägeblattenden die Breite des Laubsägeblattes nicht vergrößert wird. Da die Enden gebräuchlicher Laubsägeblätter in ihren Querschnitten in der Regel wenigstens doppelt so breit wie dick sind, ergibt sich durch das Verdrehen derselben um 180 bis 2400 nur eine Verbreiterung der Dicke des Laubsägeblattes um etwa das Doppelte, was genügt, um dem Laubsägeblatt in den Bügelschlitzen gemäß Hauptpatents den erforderlichen sicheren Halt zu geben.As is well known, a fretsaw blade with compressed narrow heads is used. When upsetting the narrow heads of this jigsaw blade, the width of the jigsaw blade is naturally widened, which must be removed afterwards if the drill holes cannot be wider than for the passage of unthickened saw blade ends during jigsaw work due to insufficient space. The use of the jigsaw blade according to the invention with turned on outer end reinforcements avoids said disadvantage in such a way that, contrary to the upsetting of heads, the width of the jigsaw blade is not increased when the saw blade ends are twisted. Since the ends of common fretsaw blades are generally at least twice as wide as they are thick in their cross-sections, twisting them by 180 to 240 0 only widens the thickness of the fretsaw blade by about twice, which is enough to fit the fretsaw into the To give bracket slots according to the main patent the required secure hold.

Diese Verdickungen gehen keinesfalls über die natürliche Breite des Laubsägeblattes hinaus. Es lassen sich also mit dieser Laubsäge unbehindert auch allerfeinste Durchbrücharbeiten ausführen, deren Bohrlochweiten für Laubsägeblätter mit glatten, also unverdickten Enden bemessen, sind.These thickenings do not go beyond the natural width of the fretsaw blade. Even the finest breakthrough work can be done unhindered with this fretsaw execute the drill hole widths for fretsaw blades with smooth, i.e. unthickened Ends are sized.

Außerdem haben die erfindungsgemäß um 180 bis 2400 angedrehten Endverstärkungen von Natur aus eine gewisse Länge, wodurch sicheres Erfassen zwecks Entfernung allenfalls daranhängender Sägebiatteile aus den Bügelschlitzen möglich ist.In addition, the end reinforcements turned by 180 to 240 0 according to the invention naturally have a certain length, so that secure gripping is possible for the purpose of removing any saw blade parts attached to them from the bracket slots.

Die neue Laubsäge ist auf der Zeichnung beispielsweise dargestellt, und zwar zeigt:The new fretsaw is shown in the drawing, for example, which shows:

Abb. ι die Laubsäge in Vorderansicht,Fig. Ι the fretsaw in front view,

Abb. 2 ein Laubsägeblattende im eingespannten Zustand in vergrößertem Maßstab, Abb. 3 Vorderansicht des Laubsägeblattes, Abb. 4 Seitenansicht desselben.Fig. 2 a fretsaw blade end in the clamped state on an enlarged scale, Fig. 3 front view of the fretsaw blade, Fig. 4 side view of the same.

Die Enden 1 und 2 des Laubsägeblattes 3 sind um etwa 180 bis 240 ° um ihre eigene Achse verdreht. Dadurch wird erreicht, daß sich die Dicke des Laubsägeblattes an dessen Enden verstärkt, die Breite der Blattenden dagegen nicht. Der Vorgang des Einspannens des Laubsägeblattes mit den verdrehten Enden entspricht dem des Hauptpatents.The ends 1 and 2 of the jigsaw blade 3 are about 180 to 240 ° around their own Axis twisted. This ensures that the thickness of the jigsaw blade is based on it The ends are reinforced, but the width of the ends of the leaves is not. The process of clamping of the fretsaw blade with the twisted ends corresponds to that of the main patent.

Claims (1)

Patentanspruch :Claim: Laubsäge nach Patent 658 081, dadurch gekennzeichnet, daß die schmalen Köpfe des Laubsägeblattes durch Verdrehen derselben hergestellt sind, so daß die Verdickung der Sägeblattenden nicht über die natürliche Breite des Laubsägeblattes hin- 75 ausgeht.Fretsaw according to Patent 658 081, characterized in that the narrow heads of the fretsaw blade are made by twisting the same, so that the thickening the end of the saw blade does not extend beyond the natural width of the fretwork 75. Hierzu 1 Blatt Zeichnungen1 sheet of drawings
DEH144935D Jigsaw Expired DE668348C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEH144935D DE668348C (en) Jigsaw

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH144935D DE668348C (en) Jigsaw

Publications (1)

Publication Number Publication Date
DE668348C true DE668348C (en) 1938-12-01

Family

ID=7179568

Family Applications (1)

Application Number Title Priority Date Filing Date
DEH144935D Expired DE668348C (en) Jigsaw

Country Status (1)

Country Link
DE (1) DE668348C (en)

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