DE380162C - Cold ironing saw, the saw blade of which is clamped diagonally to the ironing guide - Google Patents

Cold ironing saw, the saw blade of which is clamped diagonally to the ironing guide

Info

Publication number
DE380162C
DE380162C DEL55032D DEL0055032D DE380162C DE 380162 C DE380162 C DE 380162C DE L55032 D DEL55032 D DE L55032D DE L0055032 D DEL0055032 D DE L0055032D DE 380162 C DE380162 C DE 380162C
Authority
DE
Germany
Prior art keywords
saw
ironing
saw blade
guide
cold
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
DEL55032D
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.)
PAUL LAUCKNER
Original Assignee
PAUL LAUCKNER
Publication date
Priority to DEL55032D priority Critical patent/DE380162C/en
Application granted granted Critical
Publication of DE380162C publication Critical patent/DE380162C/en
Expired 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
    • 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
    • B23D51/16Sawing 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
    • B23D51/20Sawing 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 with controlled feed of the tool, or with special arrangements for relieving or lifting the tool on the return stroke
    • 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
    • B23D49/00Machines or devices for sawing with straight reciprocating saw blades, e.g. hacksaws
    • B23D49/04Hacksaw machines with straight saw blades secured to a pivotally-arranged frame

Landscapes

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

Description

Vorliegende Erfindung betrifft eine Bügelkaltsäge, bei der das Sägeblatt beim Rückgang entlastet ist. Es gibt viele Arten von Ausführungen, bei denen das Sägeblatt bzw. der Sägebügelführungsarm hydraulisch oder mechanisch am Ende des Arbeitsganges hochgehoben wird. Die hydraulischen Vorrichtungen arbeiten wohl gut, sind aber vielteilig und teuer, so daß sie an kleinen Sägen nicht ίο verwendet werden können. Auch die Klemmvorrichtungen, die man zum Anheben verwandte, haben sich nicht gut bewährt, weil man auf einen kurzen Kurbelweg große Gewichte aus der Ruhe in die Bewegung überleiten muß. Wenn man dabei noch die große Umdrehungszahl der Säge bedenkt, so ist es begreiflich, daß die Teile der Klemmvorrichtung infolge der großen Beanspruchung bald verschleißen und die Zuverlässigkeit der Säge verloren geht.The present invention relates to a cold hacksaw, in which the saw blade when retreating is relieved. There are many types of designs in which the saw blade or the saw frame guide arm is raised hydraulically or mechanically at the end of the work cycle will. The hydraulic devices work well, but are multi-part and expensive, so they do not work on small saws ίο can be used. Also the clamping devices, that you used for lifting have not worked well because you have large ones on a short crank travel Must transfer weights from rest to movement. If you add the big one Considering the number of revolutions of the saw, it is understandable that the parts of the clamping device soon wear out due to the heavy use and the reliability of the saw get lost.

LTm nun das Anheben der schweren Gewichte durch eine Klemmvorrichtung am Ende des Arbeitsganges zu umgehen, wird bei vorliegender Erfindung das bekannte schräg Z5 zur Bügelführung eingespannte Sägeblatt verwandt. Dieses erteilt dem Sägebügel bzw. Führungsarm beim Arbeitsgang eine Aufwärtsbewegung. Diese geht bisher für den Rückgang wieder verloren und das Sägeblatt (o schleift auf dem Werkstück. Bei meiner Erfindung wird nun der durch das schräg eingespannte Sägeblatt entstehende Anhub benutzt, um das Sägeblatt für den Rückgang zu j entlasten. Der Sägebügel bzw. Führungsarm j behält mit Hilfe einer bestimmten Vorrich- j tung beim Rückgang die Lage bei, die er wäh- j rend des Arbeitsganges erhalten hat. Erst am Ende oder nahezu am Ende des Rückganges senkt sich der Sägebügel wieder auf das Werkstück. Der technische Fortschritt meiner Erfindung liegt darin, daß der bis jetzt verlorengegangene Anhub ausgenutzt und dadurch die Leistungsfähigkeit der Säge ganz bedeutend erhöht wird. Vorliegende Erfindung besteht also darin, daß das ohne eine besondere Anhubvorrichtung während des Arbeitsganges angehobene Sägeblatt beim Rückgang die Lage, die es am Ende des Arbeitsganges eingenommen hat, beibehält und sich erst am Ende oder nahezu am Ende des Rückganges wieder auf das Werkstück senkt. Abb. ι zeigt eine, Abb. 2 und 3 eine zweite Ausführungsform der Vorrichtung. Der Sägebügel b befindet sich am Anfang des Arbeitsganges, die gestrichelte Lage zeigt ihn am Ende des Arbeitsganges. Durch das schräg zur Bügelführung eingespannte Sägeblatt j ist der Sägebügel Ty während des Arbeitsganges in die strichpunktierte Lage gehoben worden. In dieser Lage soll derselbe 6ü nun festgehalten werden, so daß das Sägeblatt 5 bzw. die Bügelführung die am Ende des Arbeitsganges erhaltene Lage beim Rückgang beibehält. Dieses Festhalten kann nun mittels verschiedener bekannter Mittel, wie Zahnstange, Klemmvorrichtung o. dgl. erfolgen. Die in Abb. 1 angegebene Haltevorrichtung beruht auf Kniehebelwirkung. Eine Kurvenscheibe k läuft auf die Rolle r auf, wodurch die durch den Lenker 0, k gehaltene Druckstange I gegen die Haltestange t gedruckt wird. Die Haltestange t stützt sich gegen ein durch eine Feder f gehaltenes Druckstück c, wodurch ein Festklemmen hervorgerufen wird.L T m to bypass the lifting of the heavy weights by means of a clamping device at the end of the operation, the known saw blade clamped at an angle Z 5 to guide the bow is used in the present invention. This gives the saw bow or guide arm an upward movement during operation. This has so far been lost again for the retreat and the saw blade (o grinds on the workpiece. In my invention, the lift created by the saw blade clamped at an angle is used to relieve the saw blade for the retreat j. The saw bow or guide arm j retains With the help of a certain device, the position of the retraction is as it was during the operation. Only at the end or almost at the end of the retraction does the saw frame lower itself back onto the workpiece. The technical progress of my invention lies in this that the uplift that has been lost up to now is used and the performance of the saw is increased significantly. The present invention therefore consists in the fact that the saw blade, which is lifted during the working cycle without a special lifting device, returns to the position it assumed at the end of the working cycle, and only at the end or almost at the end of the decline is lowered back onto the workpiece. Fig. Ι shows a, Fig. 2 and 3 a second embodiment of the device. The saw bow b is at the beginning of the work step, the dashed position shows it at the end of the work step. Through the saw blade j clamped at an angle to the bracket guide, the saw bracket Ty has been lifted into the dot-dash position during the operation. The same 6ü should now be held in this position, so that the saw blade 5 or the bracket guide retains the position obtained at the end of the operation when it retreats. This retention can now be done by means of various known means, such as a rack, clamping device or the like. The holding device indicated in Fig. 1 is based on toggle lever action. A cam disk k runs onto the roller r , as a result of which the push rod I held by the handlebars 0, k is pressed against the holding rod t . The holding rod t is supported against a pressure piece c held by a spring f , whereby a clamping is caused.

Abb. 2 und 3 zeigen eine andere Ausführung. Die Haltestange t wird hier mittels einer Schraube η gegen einen Nocken d festgeklemmt. Hier wird ein Exzenter e ;;um Antrieb verwendet. Von den vielen Arten von Klemmvorrichtungen, welche angewandt werden können, soll dies nur einige zeigen.Fig. 2 and 3 show another embodiment. The holding rod t is here clamped against a cam d by means of a screw η . Here an eccentric e ;; is used to drive. This is only intended to illustrate a few of the many types of clamping devices which can be used.

Claims (1)

Patent-Anspruch :Patent claim: Bügelkaltsäge, deren Sägeblatt schräg zur Bügelführung eingespannt ist, dadurch gekennzeichnet, daß das Sägeblatt in der Stellung, in die es durch die Schräglage während des Arbeitsganges gehoben ist, beim Rückgang mittels einer an sich bekannten Klemmvorrichtung derart gehalten wird, daß es sich erst am Ende des Rückganges wieder auf das Werkstück senkt.Cold hacksaw, the saw blade of which is clamped at an angle to the hanger guide, thereby characterized in that the saw blade is in the position in which it is tilted is lifted during the operation, held in such a way during the fall by means of a clamping device known per se becomes that it only sinks back onto the workpiece at the end of the decline. Hierzu 1 Blatt Zeichnungen.1 sheet of drawings.
DEL55032D Cold ironing saw, the saw blade of which is clamped diagonally to the ironing guide Expired DE380162C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEL55032D DE380162C (en) Cold ironing saw, the saw blade of which is clamped diagonally to the ironing guide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL55032D DE380162C (en) Cold ironing saw, the saw blade of which is clamped diagonally to the ironing guide

Publications (1)

Publication Number Publication Date
DE380162C true DE380162C (en) 1923-09-03

Family

ID=7276635

Family Applications (1)

Application Number Title Priority Date Filing Date
DEL55032D Expired DE380162C (en) Cold ironing saw, the saw blade of which is clamped diagonally to the ironing guide

Country Status (1)

Country Link
DE (1) DE380162C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1013144B (en) * 1954-09-22 1957-08-01 Otto Baier Motor-driven, hand-guided jigsaw machine in the feed direction for pulling cut for sawing plate-shaped metal workpieces

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1013144B (en) * 1954-09-22 1957-08-01 Otto Baier Motor-driven, hand-guided jigsaw machine in the feed direction for pulling cut for sawing plate-shaped metal workpieces

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