EP0271755B1 - Saw bench for mounting portable circular saws - Google Patents

Description

The invention relates to a workpiece table according to the preamble of claim 1.

Workpiece tables of this type are known (DE-GM 76 21408). A disadvantage of these designs is that the swivel arm with the circular saw must always be loosened and moved from corresponding swivel axes before it can be used again in the new position.

There are also workpiece tables of a similar type known (DE-PS 31 34 086), in which a removal of the swivel arm is not necessary because the swivel arm here first from its disengaged position by 180 _° approximately parallel to the table surface and only then in the under-table position is pivoted. It is disadvantageous, however, that in this way the operating side of the cross-cut and miter saws is a different table side than the side required for the circular saw in the under-table position. All anchor devices provided for one machining process must therefore be dismantled and moved to the other side.

The innovation is therefore based on the task of designing a workpiece table of the type mentioned in such a way that a simple transfer from the over-table position into the under-table position is possible without removing the swivel arm, the operating side should remain the same and also open up the possibility of performing bevel cuts shall be.

To solve the characteristic features of claim 1 are provided. By pivoting the table top of the workpiece table, the direction of rotation of the saw blade remains the same in both working positions, so that only one operating side has to be provided on the table. Space on both sides of the table for the operator or turning the workpiece table in the absence of such space is therefore not necessary. Although it is known for saw units (DE-AS 16 28 992), the table top can be pivoted through 180 _° . The design provided there does not allow the removal of a hand-held circular saw, which can also be used otherwise. In addition, the saw unit is also stored on a rotatable rotary table, which would be too expensive for use with hand-held circular saws.

• Fig. 1 eine schematische Seitenansicht des neuen Werkstücktisches mit einer angebauten Handkreissäge,
• Fig. 2 die Draufsicht auf die Einrichtung der Fig. 1,
• Fig. 3 den Werkstücktisch der Fig. 1, jedoch in einer um 180_° verschwenkten Lage der Tischplatte, in der das Sägeaggregat unter der Tischoberfläche liegt und
• Fig. 4 eine schematische Darstellung einer Ansicht auf die Kulissenführung des Werkstücktisches der Fig. 1.

The invention is shown schematically in the drawing using an exemplary embodiment and is explained below. Show it:

• 1 is a schematic side view of the new workpiece table with an attached circular saw,
• 2 is a top view of the device of FIG. 1,
• Fig. 3 shows the workpiece table of Fig. 1, but in a 180 _° pivoted position of the table top, in which the saw unit is below the table surface and
• 4 is a schematic representation of a view of the link guide of the workpiece table of FIG. 1.

In Fig. 1, a workpiece table (1) for mounting a hand-held circular saw (2) is shown, which is firmly connected via a mounting flange, not shown, to a swivel arm (5) which is pivotally mounted about the axis (7). The axis (7) runs parallel to the axis (9) of the saw blade (4) of the circular saw (2) and it is housed in a bearing (10) which, in turn, can be pivoted via a flange (11) on a link guide (6) is held. The link guide (6) with the link slot (12) is - see Fig. 4 - designed so that it runs in a circular arc around an axis (8) which in the table surface (3a) of the table top (3) and through the slot ( 13) runs in the table top (3). The design and arrangement of the hand-held circular saw on the swivel arm (5) is also such that the axis (8) also cuts the saw blade plane when it is guided through the slot from below in the under-table position according to FIG. 3. The link guide (6) is firmly connected to the table top (3). The table top (3) itself is pivoted about the axis (14) on a table frame (15) which is provided with legs (16). The position of the table top (3) shown in FIG. 1 and in FIG. 3 can be locked in each case.

The swivel arm (5) is supported by a compression spring (17) on a projection of the flange (11), which ensures that the swivel arm is always pressed upwards in the over-table position according to FIG. 1, so that it uses the circular saw (2) as with a chop saw. 3, the swivel arm (5) is pulled against the table top (3) via a screw connection in a manner known per se, so that the depth of cut caused by the saw blade (4) can be adjusted when table sawing.

Claims (1)

1. Workpiece table for mounting manual circular saws, which is provided with a table plate having a slot for passing through part of the saw blade and having a pivot arm for mounting the manual circular saw, and by means of which the manual circular saw can be used in a position above the table as an oscillating or mitre box saw and in a position below the table as a table saw, characterised in that the table plate (3) is mounted on the workpiece table (1) such that it can pivot through 180° and is provided with a connecting link guide (6) for the pivot shaft (7) of the pivot arm (5), on which guide the pivot shaft (7) can be pivoted at least to one side about an axis (8) which runs parallel to the saw blade plane and lies in the plane of the table bearing surface (3a).

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