DE639385C - Pendulum circular saw - Google Patents
Pendulum circular sawInfo
- Publication number
- DE639385C DE639385C DEB171415D DEB0171415D DE639385C DE 639385 C DE639385 C DE 639385C DE B171415 D DEB171415 D DE B171415D DE B0171415 D DEB0171415 D DE B0171415D DE 639385 C DE639385 C DE 639385C
- Authority
- DE
- Germany
- Prior art keywords
- saw
- arm
- circular saw
- cam
- articulated arm
- 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
- B27B5/00—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor
- B27B5/16—Saw benches
- B27B5/18—Saw benches with feedable circular saw blade, e.g. arranged on a carriage
- B27B5/188—Saw benches with feedable circular saw blade, e.g. arranged on a carriage the saw blade being mounted on a hanging arm or at the end of a set of bars, e.g. parallelograms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/25—Movable or adjustable work or tool supports
- B23Q1/44—Movable or adjustable work or tool supports using particular mechanisms
- B23Q1/50—Movable or adjustable work or tool supports using particular mechanisms with rotating pairs only, the rotating pairs being the first two elements of the mechanism
- B23Q1/54—Movable or adjustable work or tool supports using particular mechanisms with rotating pairs only, the rotating pairs being the first two elements of the mechanism two rotating pairs only
- B23Q1/5468—Movable or adjustable work or tool supports using particular mechanisms with rotating pairs only, the rotating pairs being the first two elements of the mechanism two rotating pairs only a single rotating pair followed parallelly by a single rotating pair
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Transmission Devices (AREA)
Description
639885639885
t «=>. χ.; Pei^äejkreissäge t «=>. χ .; Circular saw
Bei den bekannten Pendelkreissägen erfolgt die Geradführung der Säge entweder durch Gelenkvierecke (Nürnberger Schere) oder der • die Säge tragende Gelenkarm wird durch einen oder mehrere Lenker derart gesteuert, daß die Bewegung der Säge ,-parallel zum Werktisch erfolgt. Von diesen bekannten Ausführungen unterscheidet sich der Erfindungsgegenstand dadurch, daß die Geradführung des aus zwei gleich langen Hebeln bestehenden Gelenkannes mittels über im Verhältnis 2 : ι stehenden Kurvenscheiben geführten Ketten 'oder Seil erfolgt. Die Kurvenscheibe mit dem Radius 2'' ist fest angeordnet und fest verbunden mit dem Lagerbock des Gelenkarmes. Die Kurvenscheibe mit dem Radius V ist in dem Ellenbogengelenk des Gelenkarmes angeordnet und fest verbunden mit dem die Säge Oder sonstiges Werkzeug tragenden Arm.In the known pendulum circular saws, the saw is guided either by means of articulated quadrilaterals (Nuremberg scissors) or the articulated arm carrying the saw is controlled by one or more links in such a way that the saw moves parallel to the workbench. The subject matter of the invention differs from these known designs in that the straight-line guidance of the joint arm, which consists of two levers of equal length, takes place by means of chains or ropes guided over cam disks in a ratio of 2: ι. The cam with the radius 2 ″ is firmly arranged and firmly connected to the bearing block of the articulated arm. The cam with the radius V is arranged in the elbow joint of the articulated arm and firmly connected to the arm carrying the saw or other tool.
Durch das Verhältnis 2 : r der Radien der Kurven wird bewirkt, daß in allen Stellungen des Gelenkarmes der durch die beiden Arme des Gelenkarmes eingeschlossene Winkel β bzw. ß' am Ellenbogengelenk stets doppelt so groß ist wie der Winkel α bzw. α', der gebildet wird einerseits durch eine durch die Drehpunkte A und B gelegte Linie und anderseits durch eine durch den fest angeordneten Drehpunkt A errichtete Senkrechte. Unter der Voraussetzung,, daß das Armverhältnis der beiden Arme des Gelenkarmes = 1:1 ist, macht beim Ausziehen des Gelenkarmes der Punkt C mit Bezug auf Punkt A eine vollkommen geradlinige Bewegung, die gen.au waagerecht erfolgt zu der durch den Punkte gelegten Senkrechten.The 2: r ratio of the radii of the curves has the effect that in all positions of the articulated arm the angle β or β ' at the elbow joint enclosed by the two arms of the articulated arm is always twice as large as the angle α or α', the is formed on the one hand by a line laid through the pivot points A and B and on the other hand by a vertical line established by the fixed pivot point A. Assuming that the arm ratio of the two arms of the articulated arm is 1: 1, when the articulated arm is pulled out, point C makes a perfectly straight movement with respect to point A , which is exactly horizontal to the vertical drawn by the point .
Durch den Erfindungsgegenstand wird somit eine mathematisch genaue geradlinige Bewegung" der Kreissäge bzw. des Werkzeuges erreicht. Durch die an sich bekannte Umhüllung des Armes werden alle zur Geradführung dienenden Teile vor A^erschmutzung geschützt. The subject matter of the invention thus results in a mathematically precise straight-line movement " the circular saw or the tool. Because of the envelope, which is known per se of the arm, all parts used for straight guidance are protected from dirt.
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt, und zwar zeigt Abb. I die Seitenansicht und Abb. II die Draufsicht. Die Achse 1 ist mit einem an der Wand oder sonstwo befestigten Lagerbock 2 durch Keil oder Vierkant fest verbunden. Ebenso mit der Achse 1 fest verbunden ist die Kurvenscheibe 3 mit dem Radius 2r, an der das eine Ende der Kette 4 oder Seil befestigt ist. Der kastenförmige Arm 5 mit dem Deckel 6 ist unabhängig von der Kurvenscheibe 3 drehbar an der Achse 1 gelagert. Die an sich bekannte kastenförmige Umhüllung des Armes 5 schützt Kette, Kurvenscheiben u. dgl. vor Verschmutzung und dient außerdem zur stabileren Lagerung der Achse". Mit der Achse 7 fest verbunden sind die die Kreissäge 10 bzw. das Werkstück tragenden Arme 8 und die Kurvenscheibe 9 mit dem Radius ir, an der das andere Ende der Kette 4 befestigt ist.An embodiment of the invention is shown in the drawing, namely Fig. I shows the side view and Fig. II shows the plan view. The axis 1 is firmly connected to a bracket 2 fastened to the wall or elsewhere by a wedge or square. Also firmly connected to the axis 1 is the cam 3 with the radius 2 r , to which one end of the chain 4 or rope is attached. The box-shaped arm 5 with the cover 6 is rotatably mounted on the axis 1 independently of the cam disk 3. The box-shaped casing of the arm 5, known per se, protects the chain, cams and the like from dirt and also provides a more stable mounting of the axle 9 with the radius i r to which the other end of the chain 4 is attached.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEB171415D DE639385C (en) | Pendulum circular saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEB171415D DE639385C (en) | Pendulum circular saw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE639385C true DE639385C (en) | 1936-12-04 |
Family
ID=7006773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEB171415D Expired DE639385C (en) | Pendulum circular saw |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE639385C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE940673C (en) * | 1949-07-04 | 1956-03-22 | Palten Stahlindustrie Ges M B | Straight guide for pendulum saws |
| EP0925873A2 (en) * | 1997-12-03 | 1999-06-30 | Kitamura Machinery Co.,Ltd. | Machine tool with a linear feeding means |
-
0
- DE DEB171415D patent/DE639385C/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE940673C (en) * | 1949-07-04 | 1956-03-22 | Palten Stahlindustrie Ges M B | Straight guide for pendulum saws |
| EP0925873A2 (en) * | 1997-12-03 | 1999-06-30 | Kitamura Machinery Co.,Ltd. | Machine tool with a linear feeding means |
| EP0925873A3 (en) * | 1997-12-03 | 2000-06-21 | Kitamura Machinery Co.,Ltd. | Machine tool with a linear feeding means |
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