DE642681C - Hand-held saw bow made of tubular steel - Google Patents

Hand-held saw bow made of tubular steel

Info

Publication number
DE642681C
DE642681C DET41146D DET0041146D DE642681C DE 642681 C DE642681 C DE 642681C DE T41146 D DET41146 D DE T41146D DE T0041146 D DET0041146 D DE T0041146D DE 642681 C DE642681 C DE 642681C
Authority
DE
Germany
Prior art keywords
hand
clamping
arch
handle
tubular steel
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
DET41146D
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.)
HELENE TIGGES GEB HERRMANN
Original Assignee
HELENE TIGGES GEB HERRMANN
Publication date
Priority to DET41146D priority Critical patent/DE642681C/en
Application granted granted Critical
Publication of DE642681C publication Critical patent/DE642681C/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

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

Description

Die Erfindung bezieht sich auf Laubsägebogen für den Handgebrauch aus Stahlrohr. Gegenstand der Erfindung ist eine Anordnung zur Einspannung des Laubsägeblattes bei Rohrbogen mit bogenförmigem Übergang vom einen zum anderen Schenkel. Doch ist die Ausbildung des Bogens an sich nicht Gegenstand der Erfindung. Es zeigt
Abb. ι einen aus Stahlrohr von geringer Wandstärke hergestellten Laubsägebogen mit in Arbeitslage befindlichem Griff, die
The invention relates to fretwork arches for hand use made of tubular steel. The invention relates to an arrangement for clamping the fretsaw blade in the case of pipe bends with an arcuate transition from one leg to the other. However, the formation of the bow per se is not the subject of the invention. It shows
Fig. Ι a fretwork arch made of steel tube of low wall thickness with a handle located in the working position, the

Abb. 2 den gleichen Bogen mit in den offenen Teil des Bogens umgelegten Griff. DieFig. 2 shows the same bow with the handle folded into the open part of the bow. the

t5 Abb. 3 und 4 erläutern die Herstellung der festen Spannbacke, während diet5 Fig. 3 and 4 explain the production of the fixed jaw, while the

Abb. 5 in Vorder- und Seitenansicht und im Grundriß die bewegliche Spannbacke für den Handgriff veranschaulicht.Fig. 5 in front and side view and in plan the movable jaw for the Handle illustrated.

Der Laubsägebogen ist in bekannter Weise aus einem dünnwandigen Stahlrohr α gebildet, in welches bei dem dargestellten Ausführungsbeispiel in einem gewissen Abstände von den Rohrenden ein nicht durchgehendes Loch ist (s. Abb. 3). Die Rohrenden sind dann, wie aus Abb. 4 ersichtlich ist, zusammengedrückt, wodurch sich eine breite und trotz der dünnen Rohrwandstärke widerstandsfähig feste Spannbacke c ergibt. An der einen Seite dieser Backe ist an der Übergangsstelle in die Rohrform infolge der ■einseitigen Bohrung b das Rohr geöffnet. In diese Öffnung d ist die zweite, gesondert hergestellte bewegliche Spannbacke e mit einer ein wenig aus der Blattrichtung abgebogenen Nase / 'eingesetzt. Mittels der durch beide Blätter hindurchgehenden Spannschrauben g lassen sich die Backen c und e zusammenpressen, wobei die Nase / sich innen gegen die Rohrwandungen abstützt. Die untere bewegliche Backes e ist als Angel zur Befestigung des Griffes ausgebildet, während die obere bewegliche Backe e nach dem Rohre zu 'eine vorstehende Nase h besitzt, auf welcher ein Gummiröllchen aufgeschoben ist. Die Nase dient dazu, das Abrutschen des Sägebagens beim Einspannen der Säge unter Abstützung des oberen Bogenschenkels gegen die Tischkante zu verhindern. Für den Durchtritt der Spannschraube g durch die untere bewegliche Spannbacke e ist in dieser ein Längsschlitz i vorgesehen. Lockert man die Spannschraube! g so weit, daß der die Nase / der Backe e gegen die Rohrwandung spannende Druck aufgehoben wird, so vermag man den Griff in der Pfeilrichtung der Abb. 1 zu verschieben, wodurch die Nase / außer Eingriff mit dem Rohr gebracht wird. Der Griff läßt sich jetzt unter Drehung um den Spannschraubenbolzen in die Lage der Abb. 2 umlegen und durch Anzug der Spannschraube in dieser feststellen. Der Laubsägebogen kann so erheblich leichter mitgenommen, auch günstiger aufbewahrt und insbesondere beim Versand und beim Export wesentlich günstiger und vorteilhafter verpackt werden. Die völlig nietlose Herstellung ermöglicht auch im Bedarfsfalle, unbrauchbar gewordene Spannbacken durch Einsetzen eines Ersatzstückes selbst in einfachster Weise ausbessern zu können.The fretsaw is formed in a known manner from a thin-walled steel tube α , in which, in the illustrated embodiment, there is a non-continuous hole at a certain distance from the tube ends (see Fig. 3). The pipe ends are then, as can be seen from Fig. 4, pressed together, resulting in a wide and, despite the thin pipe wall thickness, resiliently firm clamping jaw c . On one side of this jaw, the tube is opened at the transition point into the tube shape as a result of the one-sided bore b. In this opening d , the second, separately produced movable clamping jaw e with a nose / 'bent a little from the direction of the sheet is inserted. The jaws c and e can be pressed together by means of the tensioning screws g passing through both blades, with the nose / nose being supported on the inside against the pipe walls. The lower movable jaw e is designed as a tang for fastening the handle, while the upper movable jaw e after the tube to 'has a protruding nose h on which a rubber roller is pushed. The purpose of the nose is to prevent the saw carriage from slipping when the saw is clamped while the upper arch leg is supported against the edge of the table. A longitudinal slot i is provided in the lower movable clamping jaw e for the clamping screw g to pass through. Loosen the clamping screw! g so far that the tensioning the nose / jaw e against the pipe wall is released, the handle can be moved in the direction of the arrow in Fig. 1, whereby the nose / is brought out of engagement with the pipe. The handle can now be turned around the tensioning screw bolt in the position shown in Fig. 2 and locked in this position by tightening the tensioning screw. The fretwork arch can thus be taken along much more easily, also stored more cheaply and, in particular, be packaged much more cheaply and advantageously for shipping and export. The completely rivetless production makes it possible, even if necessary, to be able to repair clamping jaws that have become unusable by inserting a replacement piece in the simplest way.

Claims (3)

Patentansprüche:Patent claims: 1. Handlaubsägebogen aus Stahlrohr, dessen Bogentiefe wesentlich größer als seine Einspannnweite ist, dadurch gekennzeichnet, daß auf den plattgedrückten Enden der bogenförmig ineinander übergehenden Spannschenkel ia) bewegliche Spannbacken [e) mit einer Zunge (/) durch ieine Öffnung (b) in den Hohlraum des Rohres eingreifen.1. Hand-held saw arch made of steel tube, the arch depth of which is significantly greater than its clamping width, characterized in that on the flattened ends of the arched clamping legs ia) movable clamping jaws [e) with a tongue (/) through ieine opening (b) into the cavity engage the pipe. 2. Handlaubsägebogen nach Anspruch 1, dadurch gekennzeichnet, daß die Öffnung für die Zunge (/) vor dem Plattdrücken der Rohrenden gebohrt ist.2. Hand jigsaw arch according to claim 1, characterized in that the opening for the tongue (/) is drilled prior to flattening the pipe ends. 3. Handlaubsägebogen nach Anspruch 1, dadurch gekennzeichnet, daß das Loch für die Spannschraube in der den Griff tragenden Spannbacke schlitzförmig ist, um das an sich bekannte Umlegen des Griffes zu ermöglichen.3. Hand jigsaw arch according to claim 1, characterized in that the hole for the clamping screw in the clamping jaw carrying the handle is slit-shaped to to enable the known turning over of the handle. Hierzu 1 Blatt Zeichnungen1 sheet of drawings
DET41146D Hand-held saw bow made of tubular steel Expired DE642681C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DET41146D DE642681C (en) Hand-held saw bow made of tubular steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DET41146D DE642681C (en) Hand-held saw bow made of tubular steel

Publications (1)

Publication Number Publication Date
DE642681C true DE642681C (en) 1937-03-15

Family

ID=7560958

Family Applications (1)

Application Number Title Priority Date Filing Date
DET41146D Expired DE642681C (en) Hand-held saw bow made of tubular steel

Country Status (1)

Country Link
DE (1) DE642681C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6282793B1 (en) * 1999-08-12 2001-09-04 James F. Flagg Coping saw attachment for a hand held power jig saw

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6282793B1 (en) * 1999-08-12 2001-09-04 James F. Flagg Coping saw attachment for a hand held power jig saw

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