DE656811C - Hand chain saw with compressed air drive by a gear motor - Google Patents
Hand chain saw with compressed air drive by a gear motorInfo
- Publication number
- DE656811C DE656811C DED72257D DED0072257D DE656811C DE 656811 C DE656811 C DE 656811C DE D72257 D DED72257 D DE D72257D DE D0072257 D DED0072257 D DE D0072257D DE 656811 C DE656811 C DE 656811C
- Authority
- DE
- Germany
- Prior art keywords
- compressed air
- gear motor
- chain saw
- air drive
- hand chain
- 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
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
- B27B17/00—Chain saws; Equipment therefor
- B27B17/08—Drives or gearings; Devices for swivelling or tilting the chain saw
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
- B27B17/00—Chain saws; Equipment therefor
- B27B17/12—Lubricating devices specially designed for chain saws
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 betrifft eine Handkettensäge mit Preßluftantrieb durch einen Zahnradmotor, bei der in bekannter Weise eine Schneidkette von endloser Länge an einem Kettenarm geführt und am Ende desselben umgeführt ist.The invention relates to a hand chain saw with compressed air drive by a gear motor, in the known manner a cutting chain of endless length on one Chain arm is guided and led around at the end of the same.
Erfindungsgemäß wird nun die infolge des Durchlaufens durch den Zahnradmotor mit Öl angefüllte Auspuffluft des Zahnradimotors gegen die S chneidkante außerhalb ihrer Arbeitszone geleitet, um hierdurch die in der Auspuff luft befindliehen Schmierstoff teilchen zum Schmieren der Schneidkettengelenkie auszunutzen und gleichzeitig die Kette zu säubern und zu kühlen. Hierdurch wird die Schneidkette ohne Sondeneinrichtungen in betriebssauberem und -fähigem Zustande gehalten, wobei durch die stetige Kühlung und Schmierung der Kette auch die Lebensdauer der Säge verlängert wird.According to the invention, as a result of the passage through the gear motor with oil Filled exhaust air from the gear motor against the cutting edge outside of its working zone guided to thereby the in the exhaust air located in the lubricant particles to lubricate the cutting chain joint and to clean the chain at the same time and to cool. As a result, the cutting chain is in good working order without probe devices and maintained condition, with the constant cooling and lubrication the chain also extends the life of the saw.
Es ist an sich bekannt, bei Arbeits.-geräten mit Preßluftantrieb die Auspuffluft an das Werkzeug zum Kühlen und Säubern desselben heranzuführen. Dieser Vorschlag wurde beispielsweise für eine durch eine Preßluftturbine angetriebene Blattsäge gemacht. Bei einer Blattsäge sind jedoch keinerlei Gelenke vorhanden, die' einer Schmierung bedürfen; auch wäre bei dem hier vorgesehenen Turbinenantrieb eine Schmierung des Werkzeuges durch die Auspuffluft gar nicht möglich, weil aus 'einer Turbine die Preßluft vollkommen ölfrei austritt. Eine etwa erwünschte Schmierung des Sägeblattes wäre also· nur unter Anwendung zusätzlicher Maßnahmen erreichbar. ■ . 'It is known per se, in working devices with compressed air drive, the exhaust air to the tool for cooling and cleaning the same. This suggestion was made, for example, for a blade saw powered by a compressed air turbine. A blade saw, however, has no joints that 'require lubrication; the turbine drive provided here would also require lubrication of the tool not at all possible through the exhaust air, because the compressed air is completely from a turbine emerges oil-free. Any desired lubrication of the saw blade would therefore only be achievable using additional measures. ■. '
Der gleiche Vorschlag ist auch für preßluftangetriebene Bohr- und Schlaggeräte bekannt. Bei diesen Geräten liegt jedoch die Aufgabe der Erfindung, das Werkzeug vor allen Dingen zu schmieren, überhaupt nicht vor.The same proposal is also known for pneumatic drills and impactors. In these devices, however, the object of the invention is the tool above all things to lubricate, not at all before.
In der Zeichnung ist ein Ausführungsbeispiel der Erfindung schematisch dargestellt. An exemplary embodiment of the invention is shown schematically in the drawing.
Mit ι ist das Motorgehäuse bezeichnet, in dem der Zahnradmotor untergebracht ist, dessen beide Läufer mit 2 bezeichnet sind. Die Handhabe ist durch 3 und die Preßluftzuleitung mit 4 bezeichnet. Vermittels des Handhebels 5 wird das den Zulauf der Preßluft regelnde Ventil gesteuert. Die aus dem Zahnradmotor austretende Auspuffluft gelangt in dem Rohr 6 in das an dem Motorgehäuse 1 befestigte Traggehäuse für den Arm 8, der als Führung für die Schneidkette 9 dient. Die -55 Leitung 6 gabelt sich in die beiden Ausströmstutzen 10, aus denen (vgl. die eingezeichneten Pfeülinien) .die stark mit Öl versetzte Auspuffluft gegen die beiden sich bewegenden Kettenstränge '.geleitet wird. Hierdurch werden, wie schon oben angedeutet, die Sägenkettengelenke in genügender Weise geschmiert und die Sägenkette in bekannter Weise gekühlt und gesäubert.The motor housing is denoted by ι, in which the gear motor is housed, the two rotors of which are denoted by 2. The handle is through 3 and the compressed air supply line denoted by 4. By means of the hand lever 5, this is the inlet of the compressed air regulating valve controlled. The exhaust air escaping from the gear motor arrives in the tube 6 in the attached to the motor housing 1 support housing for the arm 8, which as Guide for the cutting chain 9 is used. The -55 Line 6 forks into the two outflow nozzles 10, from which (see The exhaust air, which is heavily oiled, against the two moving ones Chain strands'. Is routed. As already indicated above, this results in the saw chain joints lubricated sufficiently and the saw chain cooled in a known manner and cleaned.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DED72257D DE656811C (en) | Hand chain saw with compressed air drive by a gear motor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DED72257D DE656811C (en) | Hand chain saw with compressed air drive by a gear motor |
Publications (1)
Publication Number | Publication Date |
---|---|
DE656811C true DE656811C (en) | 1938-02-15 |
Family
ID=7061058
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DED72257D Expired DE656811C (en) | Hand chain saw with compressed air drive by a gear motor |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE656811C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2990858A (en) * | 1959-05-27 | 1961-07-04 | Anderson G Ledger | Portable air driven chain saw |
WO1992005003A1 (en) * | 1989-03-23 | 1992-04-02 | Ernst Tallberg | Portable chain saw |
-
0
- DE DED72257D patent/DE656811C/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2990858A (en) * | 1959-05-27 | 1961-07-04 | Anderson G Ledger | Portable air driven chain saw |
WO1992005003A1 (en) * | 1989-03-23 | 1992-04-02 | Ernst Tallberg | Portable chain saw |
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