DE202006011478U1 - Saw bench with reciprocating slides for the workpiece and the saw module for longer cutting lengths - Google Patents

Abstract

An improved design of saw bench, e.g. for a circular saw, has reciprocating slides moving parallel to the cutting direction and operated by cables, belts or chains and pulleys to move both the workpiece and the saw module in order to provide maximum length cuts. The actual length of cut is the sum of the length of travel of the workpiece grip and the saw module.

Description

It gives stationary in the market Workshop Saws and sliding table saws and mobile table saws.

• a. Die Tischsägen, bei denen der Vorgang des Querschneidens mit Hilfe des Sägeschlittens bzw. mit Hilfe des entlang einer Führungsrinne geführten Anschlags ausgeführt wird. Hier wird das Schneidegut in Richtung des Sägeblattes bewegt.
• b. Die Zugsägen, bei denen der Vorgang des Querschneidens dadurch ausgeführt wird, dass das Sägeblatt (Sägeaggregat (4)) gezogen wird. Das heißt, dass das Schneidegut auf dem Sägetisch ruht und das Sägeblatt bzw. das Sägeaggregat (4) in Richtung des Materials gezogen wird. Beim den meisten Zugsägen ist zudem der Vorgang, der in dem Punkt a beschrieben ist, möglich.

We can subordinate the mobile table circular saws existing on the market to 2 following groups:

• a. The table saws, in which the process of cross-cutting is performed by means of the saw carriage or with the help of guided along a guide trough stop. Here, the material to be cut is moved in the direction of the saw blade.
• b. The saws, in which the process of cross-cutting is carried out in that the saw blade (saw unit ( 4 )). This means that the cutting material rests on the saw table and the saw blade or the saw unit ( 4 ) is pulled in the direction of the material. For most train saws, the process described in point a is also possible.

It There are two requirements for the cutting process that are crucial for ergonomics and working comfort are. The two o.g. Groups of table saws are representative of these both requirements.

Requirement 1: the cutting length should as possible To be long.

The is through the saws, which are described in the point a, thereby guaranteeing that the guide rails of the sliding carriage are long, causing the saw carriage with the material one, according to the guide rail length, long thrust To run can.

• – keinen kritischen Überhang des Materials über den Rand des Sägetisches zu verursachen, wodurch die Säge zum Kippen gebracht werden könnte.
• – die Führungslinie beim Schneiden präzise ausführen zu können.

Requirement 2: the material should be moved as little as possible during the cutting process to:

• - not cause any critical overhang of the material over the edge of the saw table, which could tilt the saw.
• - To be able to execute the guiding line precisely during cutting.

The is through the saws, which are described in point b, obviously guaranteed by that the material is resting during it through the saw blade, which also makes a pushing movement, is cut.

The saws, which are described in the point a, which satisfy the requirement 1, may be obvious do not meet requirement 2; The long sled thrust can quickly increase with bulky material an overhang to lead, which in the most harmless case draws the attention of the carpenter from actual cutting process is deflected and the cutting edge imprecisely becomes. A common one desired solution attempt looks great outstanding shelves in front. This is only safe for heavy machinery and is obvious in contradiction to a mobile use of the machine.

The saws, which are described in the point b, which meet the requirement 2, can Do not fulfill requirement 1, because of the thrust of the saw blade inside the saw table is relatively limited. Thereby can only relatively narrow boards are cut across. The solution could be an extension of the blade thrust by enlarging the Saw table. However, this is in contradiction to a mobile use of Machine.

Of the first common disadvantage for all the above Table Saws is the addiction working comfort and ergonomic operation on the size of the saw table and the outsourced shelves.

Of the second common disadvantage for all the above Table Saws seems the incompatibility of the requirement 1 with the requirement 2 in one device to be.

Of the The invention defined in claim 1 is based on the problem the dependence working comfort and ergonomic operation on the size of the saw table and the outsourced shelves and thus narrow the gap between work requirements and mobility to reduce.

The here desired solution direction sees the enlargement of the cutting length and the working comfort with the same dimensions of the saw table in front.

• – aus Umlenkrollen, über die ein Zugseil oder eine Kette oder ein Band parallel zur Schienenführung des Schiebeschlittens, oder parallel zur Rinnenführung des Queranschlags, gespannt ist, besteht,
• – über ein Zugseil oder eine Kette oder ein Band das Sägeaggregat mit dem Schiebeschlitten oder mit dem Queranschlag verbindet.

Here creates
a table saw with a mechanism remedy, the mechanism

• - consists of pulleys over which a pull rope or a chain or a belt is stretched parallel to the rail guide of the sliding carriage, or parallel to the channel guide of the transverse stop, consists,
• - Connects the saw unit with the sliding carriage or with the transverse stop via a pull rope or a chain or a band.

Thanks to the saw table registered for protection, it is possible to achieve the approximation of the two requirements; the cutting length should be as long as possible and the material should move as little as possible during the cutting process become. 6 ,

The mechanism ( 1 ) causes a simultaneous thrust of the sliding carriage ( 5 ) and the saw blade. Here, the length of the section L1 consists of the sum of the path of the sliding carriage ( 5 ) L2 and the path traveled by the saw blade at the same time L3 ie: L1 = L2 + L3, which results L2 = L1 - L3 which means that the material has a shorter path on the sliding carriage ( 5 ) must be transported in order to achieve the cutting length L1 as would be the case with conventional saws. The advantage of the double thrust is with the help of 6 shown. Here we have reached the convergence of two requirements 1 and 2.

• – die Fläche des Sägetisches kann wesentlich kleiner ausfallen
• – die herausragenden Ablageflächen können kleiner ausfallen oder entfallen ersatzlos

This results in the following design features for the mobile table saws:

• - The surface of the saw table can be much smaller
• - The outstanding storage space can be smaller or omitted without replacement

• – eine höhere Mobilität (Transport, Auf- und Abbau, Verstauen), das Tragen sowie der Auf- und Abbau wird durch das geringe Gewicht sowie durch eine bequemere Tragehaltung erleichtert. Des Weiteren ermöglicht die geringe Dimensionierung ein einfaches Verstauen in der Werkstatt oder im Hobbyraum.
• – die Verbesserung der Ergonomie (Arbeitshaltung und Arbeitssicherheit), resultiert aus der oben beschriebenen Verbesserung der Arbeitsbedingungen und dadurch, dass auch größere Materialformate geschnitten werden können, ohne dass ein Übergewicht durch einen Überhang des Materials über die Hinterkante des Sägetisches hinaus verursacht wird. Dadurch kann der Schreiner seine volle Aufmerksamkeit auf den eigentlichen Schneidevorgang im Sägeblattbereich richten. Es ist davon auszugehen, dass der Schreiner in einer entspannteren Körperhaltung arbeiten kann und die Ermüdung der Aufmerksamkeit sich langsamer einstellt.

This results in the following functional advantages:

• - Higher mobility (transport, assembly and disassembly, stowage), carrying as well as the assembly and disassembly is facilitated by the low weight and a more comfortable carrying. Furthermore, the small dimensions allow easy storage in the workshop or in the hobby room.
• - The improvement of ergonomics (work and safety), resulting from the above-described improvement in working conditions and the fact that even larger material formats can be cut without being overweight caused by an overhang of the material beyond the trailing edge of the saw table. This allows the joiner to pay close attention to the actual cutting process in the saw blade area. It can be assumed that the carpenter can work in a more relaxed posture and the fatigue of attention sets itself slower.

The improvement, thanks to our mechanism ( 1 ) can be used not only to reduce the size of the saw table but also to be able to cut larger sizes with the same size saw table.

Benefits for the commercial Use:

• - bulky Material formats can be cut more easily at the construction site. That means less Transport and time savings; that in turn means the reduction the operating costs.
• - the wider range of applications facilitates universal use, smooth Work progress and thus the reduction of operating costs.
• - of the Schreiner can work in a more relaxed posture the fatigue Attention slows down.

1

mechanism

2

guide rollers

3

rope

4

Saw unit

5

sliding table

6

guide rails of the sliding carriage

7

clutch of the sliding carriage - part of the sliding carriage

8th

clutch of the sliding carriage - part of the mechanism

9

clutch of the saw unit / block - part of the mechanism

The The invention will be explained with reference to the following drawings:

1 shows from below a saw table with built-in mechanism ( 1 ) which converts the sliding of the sliding carriage in an opposite thrust of the saw blade or the saw unit

2 shows from below the same motif as the 1 ; for this drawing the table was removed, so the whole mechanism ( 1 ) is visible.

3 shows the connection of the sliding table to the mechanism ( 1 ).

4 shows the side view on the mechanism ( 1 ) from the table side.

5 shows the side view on the mechanism ( 1 ) from the table side. Except the mechanism ( 1 ) you can see in the background only the guide rails ( 6 ) of the sliding carriage ( 5 ), which at the same time serve as a substructure for the introduction of the mechanism ( 1 ) serve.

• – in der linken Reihe: das Sägen, wobei der Schiebeschlitten und das Sägeblatt geschoben werden
• – in der mittleren Reihe: das Sägen, wobei nur der Schiebeschlitten geschoben wird
• – in der rechten Reihe: das Sägen, wobei nur das Sägeblatt geschoben wird

6 represents a comparison of 3 types of sawing:

• - in the left row: sawing, sliding the sliding carriage and the saw blade
• - in the middle row: sawing, where only the sliding carriage is pushed
• - in the right row: sawing, with only the saw blade pushed

sliced is a plate at the angle of 50 °.

To Compare with these 3 types of sawing are the size of the overhang of the material over the trailing edge of the table in the final position, and the end result in the upper horizontal row (plate cut through, not cut across).

Embodiment 1

• a. der Mechanismus besteht aus zwei Umlenkrollen mit horizontalen Drehachsen, dessen Mittelpunkte (seitlich gesehen) auf einer Linie liegen, die parallel zu den Führungsschienen des Schiebeschlittens verläuft.
• b. die Drehachsen der beiden Umlenkrollen werden mit der Konstruktion der Führungsschienen des Schiebeschlittens an dessen beiden Enden fixiert.
• c. zwischen den Umlenkrollen ist ein Seil so eingespannt, dass seine Form (seitlich gesehen) zwei parallel verlaufenden Strichen, dessen Enden jeweils mit einem Halbkreis verbunden sind, entspricht, was ähnlich dem Umriss eines lang gezogenem Stadions ist.
• d. mit dem Seil wird an einem „Strich" der Schiebeschlitten und am unterem „Strich" das Sägeaggregat verbunden
• e. die beiden Verbindungsstellen sind so angebracht, dass sie das Seil in zwei gleich lange Abschnitte teilen
• f. der auf diese Weise gebaute und eingebaute Mechanismus bewirkt, dass die Bewegung des Schiebeschlittens eine entgegengesetzte aber gleichlange Bewegung des Sägeaggregats verursacht.

The construction described in the claims allows, for example, the following embodiment:

• a. The mechanism consists of two pulleys with horizontal axes of rotation, the centers of which (seen from the side) lie in a line parallel to the guide rails of the sliding carriage.
• b. the axes of rotation of the two pulleys are fixed to the construction of the guide rails of the sliding carriage at both ends.
• c. between the pulleys, a rope is clamped so that its shape (seen laterally) corresponds to two parallel lines whose ends are each connected to a semi-circle, which is similar to the outline of a long-drawn stadium.
• d. the rope is connected to a "stroke" of the sliding carriage and at the bottom "stroke" the saw unit
• e. the two joints are mounted so that they divide the rope into two equal lengths
• f. the mechanism built and built in this way causes the movement of the sliding carriage to cause an opposite but equal movement of the saw unit.

These solution generally corresponds to our idea, but in terms of the length of the Pushing a sliding carriage and the length of the thrust of a saw unit for underfloor saws Refine. Due to the fact that the rail guide of a sliding carriage outside of the saw table is, it is reasonable longer than the saw table itself, because the longer this guide is, the longer may be the thrust of the sliding carriage and thus the cutting length.

The length of the guide and the thrust of the saw unit for underfloor saws, however, is limited by the size of the saw table. The length comparison of the two drawers in the comparable, conventional sawing tables, allows the claim that the thrust of the saw carriage is about 2 times longer than that of the saw blade (saw unit) ( 4 ). This prompted us to introduce a second embodiment.

Embodiment 2

• g. der Mechanismus (1) besteht aus zwei Umlenkrollen (2) mit horizontalen Drehachsen, dessen Mittelpunkte (seitlich gesehen) auf einer Linie liegen, die parallel zu den Führungsschienen (6) des Schiebeschlittens (5) verläuft. (2, 4, 5)
• h. die Drehachsen der beiden Umlenkrollen werden mit der Führungsschiene an dessen beiden Enden fixiert.
• i. zwischen den Umlenkrollen ist ein Seil eingespannt, so dass seine Form der Form aus dem Ausführungsbeispiel 1 (Punkt c) ähnelt mit dem Unterschied, dass der untere „Strich" unterbrochen ist und dass dessen beiden offene Enden über 2 weitere Umlenkrollen (2), die einen Block bilden, jeweils um 180° umgelenkt sind und in der Nähe jeweils der Vorderkante und der Hinterkante des Sägetisches befestigt sind. (2, 4, 5)
• j. das Seil ist mit dem Schiebeschlitten (5) verbunden und der Block mit dem Sägeaggregat (4). (2, 3, 4)
• k. der auf diese Weise gebaute und eingebaute Mechanismus (1) bewirkt, dass ein Schub des Sägeschlittens um die Länge = L einen entgegengesetzten Schub des Sägeaggregats (4) um die Länge = L : 2 verursacht

Embodiment 2 is characterized by the 1 - 5 illustrated and is to be described as follows:

• G. the mechanism ( 1 ) consists of two pulleys ( 2 ) with horizontal axes of rotation, whose center points (seen laterally) lie in a line parallel to the guide rails ( 6 ) of the sliding carriage ( 5 ) runs. ( 2 . 4 . 5 )
• H. the axes of rotation of the two pulleys are fixed to the guide rail at both ends.
• i. between the pulleys, a rope is clamped, so that its shape of the mold from the embodiment 1 (point c) is similar with the difference that the lower "stroke" is interrupted and that its two open ends on 2 other pulleys ( 2 ), which form a block, are each deflected by 180 ° and are fastened in the vicinity of each of the front edge and the rear edge of the saw table. ( 2 . 4 . 5 )
• j. the rope is with the sliding carriage ( 5 ) and the block with the saw unit ( 4 ). ( 2 . 3 . 4 )
• k. the built-in and built-in mechanism ( 1 ) causes a thrust of the saw carriage by the length = L an opposite thrust of the saw unit ( 4 ) caused by the length = L: 2

Claims (1)

A table saw with a mechanism, where the mechanism - From pulleys, over the a pull rope or a chain or a band parallel to the rail guide of the sliding carriage, or parallel to the channel guide of the Transverse stop, is tight, consists, - via a pull rope or a chain or a band the sawing unit connects with the sliding carriage or with the cross stop.