DE547381C - Electric motor-driven hand band saw with perforated saw band - Google Patents
Electric motor-driven hand band saw with perforated saw bandInfo
- Publication number
- DE547381C DE547381C DEM113570D DEM0113570D DE547381C DE 547381 C DE547381 C DE 547381C DE M113570 D DEM113570 D DE M113570D DE M0113570 D DEM0113570 D DE M0113570D DE 547381 C DE547381 C DE 547381C
- Authority
- DE
- Germany
- Prior art keywords
- saw
- band
- perforated
- electric motor
- driven hand
- 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
Links
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
- B23D61/00—Tools for sawing machines or sawing devices; Clamping devices for these tools
- B23D61/12—Straight saw blades; Strap saw blades
- B23D61/123—Details of saw blade body
-
- 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
- B23D53/00—Machines or devices for sawing with strap saw-blades which are effectively endless in use, e.g. for contour cutting
- B23D53/12—Hand-held or hand-operated sawing devices working with strap saw blades
-
- 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
- B23D55/00—Sawing machines or sawing devices working with strap saw blades, characterised only by constructional features of particular parts
- B23D55/06—Sawing machines or sawing devices working with strap saw blades, characterised only by constructional features of particular parts of drives for strap saw blades; of wheel mountings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sawing (AREA)
Description
Kurt Martini in Dresden
Elektromotorisch angetriebene Handbandsäge mit gelochtem SägebandKurt Martini in Dresden
Electric motor-driven hand band saw with perforated saw band
Patentiert im Deutschen Reiche vom 16. Januar 1931 ab.Patented in the German Empire on January 16, 1931.
Die Erfindung bezieht sich auf eine elektrische Handbandsäge mit gelochtem Sägeband, in das die Führungs- und Antriebsräder eingreifen.The invention relates to an electric hand band saw with a perforated saw band, in which the guide and drive wheels engage.
Bekannte Handbandsägen dieser Art treiben das Sägeblatt nur von einem Wellenende aus an einem Punkt an. Dadurch wird das Sägeblatt sehr- oft abgerissen, und die Motorenlager werden einseitig ausgeschliffen. »ο Die Erfindung besteht darin, daß die Motorenwelle zu beiden Seiten des Motors mit Ritzel ausgestattet ist, die in zwei Sägeantriebsstirnräder eingreifen.Known hand band saws of this type drive the saw blade only from one end of the shaft off at one point. As a result, the saw blade is very often torn off and the motor bearings are ground out on one side. »Ο The invention consists in the fact that the motor shaft on both sides of the motor is equipped with pinions, which in two saw drive spur gears intervention.
Die Motorenwelle wird an beiden Enden belastet, die Lager werden gleichmäßig und auf einer langen Fläche beansprucht; das gelochte Sägeblatt wird an zwei Punkten angetrieben, und sein Abreißen wird dadurch verhindert. Auf der Zeichnung ist ein Ausführungsbeispiel des Erfindungsgegenstandes dargestellt; es zeigen die Abb. I eine Draufsicht, die Abb. 2 die teilweise Abb. 1 mit eingebautem Antrieb, die Abb. 3 die Einstellvorrichtung für die Führungsrollen und die *5 Abb. 4 ein Stück des bekannten Sägeblattes. Im Gehäuse 1 sind auf den Zapfen 2 drehbar die Zahnräder 3 angeordnet, die mit ihren Zähnen in die Löcher 4 des Sägebandes eingreifen. Auf zwei der Zapfen 2 sind Stirnräder 6 aufgekeilt, die durch Ritzel 7 angetrieben werden, die auf die Welle 8 des Motors 9 aufgesetzt sind. Als nicht zur ErfinThe motor shaft is loaded at both ends, the bearings become even and stressed over a long area; the perforated saw blade is driven at two points, and its tearing is thereby prevented. An exemplary embodiment is shown in the drawing the subject matter of the invention shown; Fig. I shows a plan view, Fig. 2 shows the partial Fig. 1 with built-in Drive, Fig. 3 the setting device for the guide rollers and the * 5 Fig. 4 a piece of the known saw blade. In the housing 1, the gears 3 are rotatably arranged on the pin 2, with their The teeth engage in the holes 4 of the saw band. On two of the pins 2 there are spur gears 6 keyed, which are driven by pinions 7, which are on the shaft 8 of the motor 9 are attached. As not to the inventor
dung gehörend wird es bezeichnet, daß aus einem Bogen 10 Schlitzen ausgespart sind, in denen die Zapfen 2 verschoben werden. 35 Unter dem Gehäuse sind neben den Schlitzen 11 Rasten 12 vorgesehen, mit denen gezahnte Platten 13 in Eingriff gebracht werden, durch die die Bolzen 2 geführt sind. Mittels Flügelschraubenmuttern 14, die auf die vorstehenden 40 Enden der Zapfen 2 geschraubt werden, erfolgt ein Anziehen der Platten 13 gegen die Rasten 12. Es ist ein Flansch 15 vorgesehen. Mittels der Ritzel 7, von denen das eine vor der einen Drehachse, das andere hinter 45 der anderen Drehachse der Stirnräder 6 in diese eingreifen, wird- das endlose Sägeband zum Umlaufen gebracht, indem die mit den Stirnrädern auf einer gemeinsamen Achse sitzenden Zahnräder das Sägeband vorziehen, 50 das nicht rutschen kann. Durch Verschieben der Zapfen 2 in den Schlitzen 11 wird die Blattspannung geregelt, während das Sägeblatt umläuft.belonging to it, it is called that 10 slots are cut out of a sheet, in which the pin 2 are moved. 35 Under the case are next to the slots 11 notches 12 are provided with which toothed plates 13 are brought into engagement by which the bolts 2 are guided. By means of wing nuts 14, which are attached to the protruding 40 Ends of the pin 2 are screwed, the plates 13 are tightened against the Notches 12. A flange 15 is provided. By means of the pinion 7, one of which in front of one axis of rotation, the other behind 45 of the other axis of rotation of the spur gears 6 in these intervene, the endless saw band is made to rotate by the with the Spur gears on a common axis pull the saw band forward, 50 that cannot slip. By moving the pin 2 in the slots 11, the Blade tension regulated while the saw blade rotates.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEM113570D DE547381C (en) | Electric motor-driven hand band saw with perforated saw band |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEM113570D DE547381C (en) | Electric motor-driven hand band saw with perforated saw band |
Publications (1)
Publication Number | Publication Date |
---|---|
DE547381C true DE547381C (en) | 1932-03-31 |
Family
ID=7327838
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEM113570D Expired DE547381C (en) | Electric motor-driven hand band saw with perforated saw band |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE547381C (en) |
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0
- DE DEM113570D patent/DE547381C/en not_active Expired
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