WO1994023877A1

WO1994023877A1 - Circular cross-cut, mitre-box and bench saw

Info

Publication number: WO1994023877A1
Application number: PCT/DE1994/000388
Authority: WO
Inventors: Otto Bergler
Original assignee: Otto Bergler
Priority date: 1993-04-08
Filing date: 1994-04-08
Publication date: 1994-10-27
Also published as: DE4345175A1

Abstract

The circular cross-cut, mitre-box and bench saw (1) has a fixed basic frame on which a benchtop (7) can pivot about a horizontal axis or be secured in its horizontally pivoted positions. The benchtop (7) supports a saw unit (24) which has an electric motor (26) and a circular saw blade (28) driven thereby. The saw unit (24) can be pivoted, tipped and secured in relation to the benchtop via a multi-axis hinge. The benchtop (7) has a saw slot (17) through which the saw blade (28) penetrates when the bench saw is in operation. On the side of the benchtop (7) facing the saw unit (24) there is a mitre-box bench (11) with its own saw slot (17) which, together with the saw unit (24), is arranged to rotate about an axis perpendicular to the benchtop. Between the mitre-box bench (11) and the benchtop (7) there is a space making it possible for the circular saw blade (28) to enter the saw slot (17) in the mitre-box saw bench (11) during mitre-box sawing without sawing into the benchtop (7).

Description

Kapp-, Gehrunαs- and Tischsäσe

The invention relates to a combined table and miter circular saw with the arrangement according to the preamble of claim 1.

Combined cross-cut, miter and table saws have been known for more than 25 years, with a reversible base plate with directly opposite work surfaces being used particularly frequently. This also corresponds to the trend in the interior fittings sector. Due to many semi-finished products and diverse designs, such as: bay window, roof extension, winter garden, etc., the following are: profile formwork, tongue and groove boards, wooden floorboards, finished parquet, lamperies, moldings, wooden beam ceilings, cassettes, radiator panels, built-in furniture, etc . to edit.

This does not only address the craftsman.

It has become established that the table and miter saw is used more and more in construction as an interior finishing machine. In many cases, exactly tailored cross-cuts and miter cuts, as well as long-tailored cuts for end boards, are required. Requirements for table saws

Spare sheet are precise cutting results, e.g. for profile formwork, ledges and coated materials, etc.

For such a combined machine, robustness, mobility, precision, a stable, level table, safety ^against accidents, gentle workpiece guidance, smooth swiveling movement and the lowest possible weight are required.

The known table and miter saws are mainly those with a reversible plate, as shown in DE-PS No. 1628992.2 from 03.01.68.

The rotary table is provided with a lever bearing for mounting a motor-driven saw unit. The rotary table is in turn stored in a circular bearing in a rectangular table. This table mounting is so large in diameter that the chop saw area in a slot that can be pivoted about a vertical axis and is open towards the periphery, with a circular saw blade diameter of 250 mm, allows a cutting width of approximately 180-200 mm. A slot extension is provided in the rectangular saw table, which is aligned with the slot in the rotary table in the middle position of the rotary table, that is to say when the rotary table is not pivoted and the cut is at right angles. This elongated slot is provided so that on the one hand the saw blade for the table circular saw area can dip deeper and on the other hand there is space for a riving knife. Furthermore, the rotary table on the table saw side is flush with the table. On the miter saw side, it has a raised support surface that lies all around on the back of the saw table, i.e. it has an attachment for guiding and locking. When swiveling in any set miter saw position, the support surface with the heel of the rotary table surface that is elevated relative to the back of the saw table partially directly covers the center slot of the saw table and thereby forms a bridge over the slot in the saw table, for example to its axis of symmetry. Adjusting slide screws are in a vertical Workpiece stop attached. The rotary axis of rotation is aligned with the workpiece stop center (stop surface).

The pivotally mounted in the circular table saw unit is (so far as the angled edge of the table support and stop) immersed in the "miter" from above in the deepest Kappsägenstel ^¬ lung. The flat surface of the miter saw table is significantly exceeded. Limiting the depth of field is Tauch¬ it reaches ^¬ by an adjustable depth stop, which is put out of function during Tiεchsägen.

For this purpose, a depth adjustment spindle is hung in the table saw, which is supported in the radial direction to the saw unit mounting in the rotary table and is suspended in the saw unit arm. The unit is thus adjusted.

In order to reach the upper end position (according to accident prevention regulation UW) from the saw arm, a tension or torsion spring acts, which presses the saw arm against the rotary table against a stop in the starting or rest position.

For the horizontal swivel mounting for table saw or after 180 ° swivel in miter saw function, a bearing is accommodated in the workpiece angle stop for dimensional reasons and is mounted between two cheeks with feet.

There are also miter saws with an angular base frame. Above the submersible saw arm with motor, the submersible table (small) is arranged.

According to DE 41 06635 Cl, a saw arrangement is described in which, instead of a rotary table, a relatively thin support element is also provided with a through slot for the saw blade. In the combined plunge and saw movement, only this "thin" support element is dipped.

REPLACEMENT LEAF It can only be immersed in the right-angled cutting area for cross-cut sawing.

Furthermore, in DE 41 06635 C1 in the preamble of claim 1, the patent no. 1628992.2 is used in all elements. In this case, the saw blade extends under other miter points even in a central position (support element) in a lowered position through a passage slot provided in the rotary table. The rotary table (support element) is designed with a miter saw support on one side and is flush on the opposite side to the table saw surface. In the case of these table and cross-cut saws which can be turned through 180 °, the saw blade is of the generic type in a lowered position below the surface of the saw table. This corresponds not only to the preamble (analogously), but is shown in a figure and is also clearly described in several parts of the description in DE 41 06635 Cl.

It must also of separating workpieces, when doing the angular edge of the workpiece stop to be achieved, the saw unit each radial sawing in the pulling direction when Kapp¬ and submersible, tension (pressure) sawing ^'are brought into position. Furthermore, it can be seen from the exact description of DE 41 06635 and DE 41 06635 that no arbitrary cross-cut and miter cuts are possible. Only a combined tilting and pulling movement of the saw unit is possible. For this, slots in the saw table are proposed in selected positions. So no arbitrary angle cuts can be achieved. Breakthroughs which are arranged at an angle to the direction of the cut are dangerous for accidents and are detrimental to the stability and torsional rigidity (they go through to the middle of the saw slot).

Furthermore, a relatively thin table and support plate is difficult overall in a sufficient twist

REPLACEMENT LEAF stiffness. It is indeed achieved that a table saw plate which is customary in table saws and provided with a central slot is possible.

The support element rubs on the entire surface of the table, as shown and described, and chips, dust, abrasion particles can get stuck during the pivoting process between the support element and table top (also difficult to move).

Ultimately, it should be noted that in both of the drawings shown, each of DE 41 06635 Cl / DE 41 06636 Cl, guide rods are fixed and parallel to the workpiece support surface above the workpiece. This means that the plunger bearing axis must always be arranged above the workpiece area, so that the cutting forces on the plunge curve tend to lift the workpiece. In addition, the flat pressure angle tends to tear, particularly on the workpiece surface. The precise parallel alignment of the guide rods is not only necessary for flat cuts, but also because of the small immersion depth in the carrier element.

Diving beneath the table surface during cross-cut sawing is dangerous. According to UW, the saw blade must be covered, which in turn must be removed or can hinder when switching to table saw function.

The object of the invention is to design a cross-cut, miter and table saw that can be used both for miter cuts and as a table saw, the operation of the cross-cut, miter and table saw to be simplified.

This object is achieved by the cross-cut, miter and table saw with the features of claim 1.

In the invention, the independent miter table (table) in connection with the saw table (plate) means that

watt Any design of the miter saw table with its storage possible. Above all, the swivel bearing is small in diameter and high. This results in a favorable ratio of the bearing diameter to the length. With additional means for reducing friction, for example plastic or roller bearings, the smooth movement of the swivel movement is achieved. Also, the torsional stiffness is stet by a higher bridge stop ensu ^¬, so that the entire reversible unit is stable. Furthermore, a larger cutting area can be selected without impairing the stability and size. Therefore, it is possible to easily on the page Gehrungssägen¬ a combined splash, crosscut and miter saw anzuord ^¬ nen. When operating as a miter or chop saw, the saw blade can plunge deep into the gap without touching or sawing the board. This means that the saw blade is used over a large width without it penetrating through the plate and being exposed on the underside. Additional covers of the saw blade, as would otherwise be necessary for reasons of accident protection, can therefore be dispensed with.

If a breakthrough is provided in the table for receiving bearing and gear means, of which the saw blade is held and driven, the shaft of the saw blade can be brought very close to the plate in table saw operation. As a result, the distance between the table and the plate can be chosen to be relatively large without the cutting depth being lost during table saw operation.

By means of a slide which is movably mounted in the opening or a movably mounted flap, the opening can be closed in miter or cross-cut saw operation, so that a closed table surface is formed which can serve as a work surface or support.

The table is advantageously mounted on the plate via a pivot bearing, the pivot bearing being a

REPLACEMENT LEAF Rotation of the table against the plate about a pivot axis substantially perpendicular to the flat side of the table enables. With the table, the gap provided for the saw blade is also pivoted against a stationary stop, so that different angles of inclination can be set.

The pivot bearing can be arranged between the plate and the table. This enables a compact construction. Because of the small lever arm on a small bearing, the friction moments remain relatively small, so that the table remains easily pivotable in the long run.

The usable working area of the saw blade is increased if a slot is provided in the pivot bearing for receiving a peripheral section of the saw blade. Moreover, it is advantageous when the pivot bearing comprises a layer ^'rkulisse which is connected to the table and having a recess. This allows the table to be pivoted when the saw blade is in the bearing with its peripheral area. This means that the saw blade cannot hit the pivot bearing.

If the circular saw unit is held on the table by means of a bearing block which defines two bearing axes which are not parallel to one another, it can be inclined laterally with respect to the saw blade and also perform an immersion movement in the gap.

If the saw unit is designed to be tiltable about an axis that lies parallel to the gap provided in the table between the plate and a support surface provided on the table, the saw blade is set when a miter, i.e. when leaning to the side, inclined without performing a lateral evasive movement at the gap opening. It does not offset laterally at the gap. This can be narrow. In particular are

ERSA _T ZBLATT no gap inserts are required to partially cover the gap, as is the case with some prior art devices.

If the bearing block can be inclined through an opening provided in the table, on the one hand a large inclination area can be created, and on the other hand the inclination axis can be easily placed in the area of the gap.

The saw unit can be divided into a saw unit and a swivel arm which can be tilted and pivoted, the saw unit being slidably mounted on the swivel arm via guide means. The saw unit contains the motor, power transmission means and the saw blade. The saw unit can thus be used as a pull saw, which increases the usable working area.

Further embodiments are the subject of subclaims.

In the drawing, an embodiment of the invention is shown. Show it:

1 is a cross-cut, miter and table saw in a perspective view,

2 the cross-cut, miter and table saw according to and 3 Fig. 1 in a schematic side view in different operating positions,

4 shows the cross-cut, miter and table saw according to FIG. 1 in a further schematic view, FIG. 6 in detail,

7 shows the cross-cut, miter and table saw according to FIG. 1 in a schematic side view,

REPLACEMENT LEAF Fig. 8 shows the saw table in a front view

Fig. 9 the saw table in a plan view.

The essential aspects of the invention and its configurations lie in the following:

1. The table serving as a miter saw support is designed as a second plate, which is provided with bearing parts; which allow a distance from the actual saw table formed by a plate, so that in Kappsägenstel ^¬ tion the immersing circular section of the saw blade with a full miter cut width is of sufficient height and thus freedom for the saw blade is ensured.

2. A breakthrough is provided in the miter support table so that a large depth of cut is achieved in table saws. The arm with the saw blade bearing dips into the opening in this operating mode.

3. The sliding stop in the groove guide (FIG. 7) gives known advantages over stops which are guided on the outside of the table, for example they can be swiveled +/- 70 °). No jamming is possible because the cut is carried out close to the cut.

4. Furthermore, the fastening groove (FIG. 7 Item 153) for holding the stop is shown in FIG. 7 (cross section through table, miter support and stop top view). Advantage: The fastening groove is also run over by the lower periphery of the saw blade in cross-cut and pull saws.

5. There is a distance between the back of the table surface (plate) and the miter saw support table (table) that corresponds to the groove height and material thickness of the sliding groove. thats why

REPLACEMENT LEAF there is also space for easy swiveling and chip removal.

6. By increasing the table, the Sägeaggre¬ can gatgelenklagerung at least on tilting in rear Posi tion ^¬ immersed in the table surface and thereby improves the cutting attack component in the workpiece.

7. As mentioned, even with cross-cut and miter saws, the saw blade is never below the saw table surface, but at least 12 mm inside the saw slot. This improves accident protection.

8. Saw and miter table have a large distance overall, so that in the middle between the two surfaces there is a large-dimensioned 180 ° reversible bearing, which ensures the same support height for the additional table and table extension.

9. The high angular edge (FIG. 7, item 52) in particular enables great stability and torsional rigidity.

10. Correspondingly dimensioned material feed rollers can be fastened in the groove 52 on the miter saw side.

11. Easy to use is that both the depth Fig. 1 Pos. Α of the lower periphery of the circular saw blade with cross-cut and miter saws, as well as with pull or push saws is the same. Only a depth limit stop is required (the maximum diving depth is inside the miter saw table and above the guide groove, Fig. 7, item 50).

12. The distance between the saw table (plate) and miter saw table (table) enables a particularly smooth swivel guide to be accommodated in this room. Note: When tilting about the axis that is approximately parallel to the miter table and lying, is flat on the Sägetisch- a corresponding thickness by the table ^¬ rising longitudinal groove Runaway necessary or zen an insert with Schlit¬.

The arrangement of an extendable radial arm device according to FIGS. 6 and 8 (or claim 11) is provided for large cutting areas.

The saw housing, optionally also the connected motor housing, are firmly connected to a bearing for a radial slide. This refers to a sled that e.g. rods 60 arranged in pairs or their storage. At least a part of the carriage or rod guide is provided between the pivot bearing 6 and the motor axis 8.

The slide or bearing rods or their guidance can be arranged "on the fly", i.e. the slide or rod guide is firmly connected to the saw and motor housing.

The pivot bearing pin 6 with the tiltable pivot bearing 28/45 also carries the cutting depth setting for the table saw. This swivel bearing 28/45 is carrier and bearing for the firmly connected slide guide.

The saw housing with motor is first immersed in relation to this swivel bearing 28, 45 by swiveling in the direction of the rotary table surface (workpiece) and then moved radially parallel to the workpiece support surface (or pulled out or pressed).

REPLACEMENT LEAF 1 to 9 show a cross-cut, miter and table saw 1 which, as can be seen in particular from FIG. 1, has two cheek parts 2, 3 spaced apart from one another. Two feet are provided on each cheek part 2, 3. The cheek parts 2, 3 are connected to one another by spacing spacers and are held parallel to one another.

The cheek parts 2, 3 have an intermediate saw table 6 on corresponding pins 4a, 5a approximately in the middle at the top in two mutually aligned bearing points 4, 5. The saw table 6 is ned by a by the bearings 4, 5 defi ^¬ approximately horizontally lying Schwenkanchse 180 ° swiveling. In both swivel positions, the saw table 6 can be locked by means not shown.

The saw table 6 has an essentially rectangular plate 7 with two flat sides 8, 9 lying opposite one another. In the locked pivot positions, one of the flat sides 8, 9 lies essentially horizontally.

Arranged on the flat side 8 at the top in FIG. 1 is a table 11 which is designed as a rotating or swiveling table and which has a swivel bearing 12 on the plate 7, which can be seen, for example, in FIG 13 is rotatably mounted. The table 11 is bridged by a workpiece system 7a serving as a stop, which is firmly connected to the plate 7 and which extends approximately from one pin 4a to the other pin 5a. The design of the pivot bearing 12 will be explained later. The pivot bearing 12 holds the table 11 at a distance of a few centimeters from the plate 7 in an essentially parallel orientation to the latter.

REPLACEMENT LEAF As the fig. 1 and 2 show, the sawing table 6 carries a sawing unit 15. The sawing unit 15 is mounted on the table 11 via a combined swivel-tilt bearing 16, which is provided with a gap 17 which is trapezoidal in cross section. During lie approximately at the diameter of the table 11 ^¬ constricting gap is open at the edge 17 on one side, that leads out of the table 11, it is delimited at its andeen end of the pan tilting bearing sixteenth The pivot / tilt bearing 16 has a first axis, referred to as the inclination axis, which lies on the upper side of the gap 17, runs parallel to the latter and lies in a horizontal plane. A second bearing axis 19 of the swivel-tilt bearing 16 lies at right angles to the inclination axis.

The saw unit 15 has a swivel arm 21, to which guide rods 22, 23 held parallel to one another are fastened. A saw unit 24 slidably slides on the guide rods and has a motor 26 held in a base body 25, which drives a circular saw blade 28 via a V-belt 27 (FIGS. 2, 3), which in turn has a bearing 29 on the Basic body 25 is mounted.

The saw unit 15 and thus the saw unit 24 can be pivoted about the bearing axis 19, the saw blade 28 being immersed in the gap 17 when the saw unit is pivoted, the pivoting range α (FIG. 3) extending from a position in which the Saw blade 28 is immersed far into the gap 17, but it does not touch the plate 7, up to a position in which the saw blade 28 is completely lifted out of the gap 17.

In order to allow a maximum pivoting range of the saw blade 28, the distance between the table 11 and the plate 7 is chosen to be large. In addition, the pivot bearing 12 connecting the table 11 to the plate 7 has a cutout 31 which is shown in FIG. 4 and which allows the saw blade 28 space. The connected to the table 11

REPLACEMENT LEAF ne section of the bearing 12 has a gap and the section connected to the plate 7 has a recess which extends over a further angular range.

For operation as a table saw, the plate 7 has a gap 32 which extends at right angles to the pivot axis defined by the pins 4a, 5a. The gap 32 is arranged such that it lies flush under the gap 17 when the table 11 has been rotated accordingly about its pivot axis 13.

In order to allow the saw blade 28 to penetrate far through the plate 7, the table is provided with an opening 34 covered by a flap 33. If the flap 33 is opened, the breakthrough is released. After releasing a corresponding locking device 35 provided on the saw unit 6, the saw blade 28 dips both through the table 11 and through the plate 7, the bearing 29 being received by the opening 34. This position is shown in Fig. 3. It can be seen that in addition to the pivoting range α, a further pivoting range β has been released by unlocking the locking device 35.

The swivel range a is used in cross-cut and miter saw cuts. The flight circle of the teeth of the saw blade 28 does not touch the plate 7, so that the table 11 can be rotated against the plate 7 as desired within the scope of its rotation range, the columns 17, 32 also being rotated counter to one another.

In contrast, when operating as a table saw, the saw blade 28 plunges far through the plate 7, the axis of rotation of the saw blade 28 being close to the flat surface 8 of the plate 7. This means that no cutting depth is lost when operating as a pocket saw. Operation and other details are as follows:

The workpiece to be cut is placed on the workpiece stop 7a, which is arranged at a right angle above the table 11 for miter sawing and bridges the latter, and this is separated by plunging or combined plunging and pulling movement of the saw unit 24.

In the case of the invention, the table 11 for miter sawing is arranged so high above the plate 7 that, on the one hand, the plunge width allows for the largest intended miter saw area (approx. 180 mm wide, 50 mm high, 90 ° straight cut) with a circular saw blade with a diameter of 250 mm. On the other hand, the saw blade 28 is immersed at this table 11 about 35-40 mm deep. In the case of pull saws, the position of the guide of the circular saw unit 24 can be inclined approximately 2-3 ° to the table 11 or its support surface, so that the largest possible cross-section is achieved in cross-cut sawing and at the same time drive over the groove guide (FIG. 7, position 154) can be. The adjustable lock 35 must reach the same position for pull and cross-cut saws. It is therefore not necessary to ensure absolute parallel movement of the saw unit 24 to the support of the table 11 and the plate 7 in the combined cross-cut and pull saws. The bearing axis 19 (plunge guide) of the saw unit 24 can, due to the distance of the plate 7 from the table 11, dip into the latter, in particular when tilting, and specifically into a recess in the table 11. A handle for guiding the saw is with the saw unit 24 firmly connected. In this at least one push button for actuating a locking button for an upper rest position of the saw unit 24 and optionally also for a locking device for a pendulum hood is provided. Of course, it is known that several buttons can be arranged for locking and on-off switches for the motor 26. ^'

REPLACEMENT LEAF Further, the "large" distance as beschrie ^¬ ben ensured that the 180 ° turn of storage, which is formed from the bearings 4, 5 and the pin 4a, 5a, is located between the plate 7 and the table 11 in the middle. In addition, there is enough space for large-sized bearings so that an additional support table can be provided. Both in miter saws and in table saw operation, there is the same aligned workpiece support surface with a table widening. An additional table can therefore be used for both purposes.

The chips or dust removal can also be achieved by the formation of a chip channel with suction nozzle between the plate 7 and the table 11. Several suction options are accommodated in the saw unit 24 in a protective hood and in a splitting wedge protective hood.

For the flawless quality of the cut surface, even with pull saws, it is necessary that the saw bearing axis defined by the bearing 29 lies exactly perpendicular to the guide axis of the saw carriage, i.e. the surface of the saw blade 28 lies in a plane parallel to the longitudinal movement of the saw carriage. This is ensured by a one-piece or firmly connected mounting for the slide guide and the mounting 29 of the saw blade 28 that is at right angles to it.

The same applies to miter saws: "dive guide"

With table saws: Groove guide for sliding stop, parallelism from the parallel stop to the saw blade surface.

All other machine elements such as riving knife attachment (UW), pendulum guard with spring-loaded tumbler (UW), saw shaft drive, saw blade holder, torsion spring for joint bearings, angular locking from the miter saw table and locking at any angle are known. The tilt

ERS _AT ZBLATT Axis is arranged parallel approximately on the surface of the table 11, therefore one or more slots are necessary for the circular saw blade to be immersed when table sawing on the table surface radially to the inclination axis. A sawing insert (UVV) can of course also be used for this.

The figures are partially shown schematically and are intended to explain the arrangement in relation to the patent claims applied for.

In addition, the cross-cut, miter and table saw can be used universally as a cross-cut saw for various angular positions. If necessary, it can be used as a tension saw by loosening a locking screw. Furthermore, it is user-friendly, stable, has torsion-resistant elements and a light support table for miter sawing. In addition, an accident-reducing design of the entire table construction has been achieved.

REPLACEMENT LEAF Description of the figures

Fig. 3 side view (principle) with saw arm, therein is mounted, motor 8 with drive from

Saw axis 114 and saw blade 28.

The area ό is equal to the miter saw work area.

The area ß is the work area table saw.

The slide 33 or flap

Table 11

Workpiece system (miter) 102

Storage of the saw arm in the bearing block 16 saw table

The common saw arm summarizes: motor 26,

Saw shaft 114 mounted in the bearing block 16

107 riving knife on the saw arm

27 belts, pulley 109 saw stroke curve 112 (motor curve),

Reversible bearing 5a

9 top view of miter saw side workpiece stop 126 swivel axis 129

Feed roller 122 and continuous with bearing angle 123, groove 124 (Arbeitsbe ^¬ rich) groove 125 in the miter detent pin 121 for the angular position of the swivel table 11 and slide door 33 splitting wedge 107 bearing block 16 Motor 26

Front ledge 130 with guide and fastening groove for parallel stop

Slot 113 in the miter table turning bearing 5

4, 5, 6

Partial view, partial section through stop 26, pivot bearing

131, bearing block 16, tilt bearing 132,

Tilt mounting 33 (Fig. 4)

Swivel bearing 131 with recess 134 for tilting (Fig. 5)

Bearing block 16 pivoted to 45 ^* (Fig. 6)

REPLACEMENT LEAF Fig. 7

Schematic representation of example of a combined plunge and pull saw

Guide column bearing 158 firmly connected to bearing block 16

Torsion spring 145

Fig. 8 table structure in cross section

Table saw surface 9

Miter saw surface 9 of table 11

Saw stop surface 102

Guide groove for slide stop 150

Fastening groove 153

Connection screw 155

Turning axis 156 (turn table 180 ^* )

REPLACEMENT LEAF

Claims

Claims:

1. Cross-cut, miter and table saw with a plate which can be pivoted about an essentially horizontally arranged axis and is therefore reversible and with a saw unit which has a saw blade, characterized in that at a distance from a flat side of the plate a table is arranged which has a gap which is limited in depth by the pivotable plate, the depth being such that it allows the saw blade to be immersed in the gap during miter and cross-cut sawing without the saw blade touches the plate.

2. cross-cut, miter and table saw according to claim 1, da¬ characterized in that a breakthrough is provided in the table for receiving bearing and gear means, of which the saw blade is held and driven.

3. Cross-cut, miter and table saw according to claims 1 to 2, characterized in that the opening can be closed by means of a movably mounted slide or a movably mounted flap.

4. cross-cut, miter and table saw according to claims 1 to 3, characterized in that the table is mounted on a pivot bearing on the plate, the pivot bearing a rotation of the table against the plate by a substantially perpendicular to the flat side of the table standing swivel axis made possible.

5. cross-cut, miter and table saw according to claim 4 da¬ characterized in that the pivot bearing is arranged between the plate and the table.

REPLACEMENT LEAF

6. cross-cut, miter and table saw according to claims 1 to 5, characterized in that a slot is provided in the swivel bearing for receiving a peripheral section of the saw blade.

7. cross-cut, miter and table saw according to claims 4 to 6, characterized in that the pivot bearing is a bearing link which is connected to the table and which has a recess that allows pivoting of the table when the saw blade with its peripheral area in the camp.

8. cross-cut, miter and table saw according to claims 1 to 7, characterized in that the circular saw unit is held on the table via a bearing block which defines two non-parallel bearing axes.

9. Cross-cut, miter and table saw according to claim 1, characterized in that the saw unit is designed to be tiltable about an axis which lies parallel to the gap provided in the table between the plate and a support surface provided on the table.

10. cross-cut, miter and table saw according to claims 8 to 9, characterized in that the bearing block can be inclined by an opening provided in the table.

11. cross-cut, miter and table saw according to claims 1 to 10, characterized in that the saw unit has a saw unit and a tiltable and pivotably mounted pivot arm and that the saw unit is slidably mounted on the Schwen¬ arm via guide means, the saw unit containing a motor, power transmission means and the saw blade.

REPLACEMENT LEAF

12. cross-cut, miter and table saw according to claim 11, characterized in that the swivel arm tr gt at least one seated in a corresponding bore tr gt, on which or which the saw unit is mounted longitudinally.

13. Cross-cut, miter and table saw according to claim 1, characterized in that the plate is provided with feed rollers.

14. Cross-cut, miter and table saw according to claim 1, characterized in that grooves are provided on the plate, in which bearing blocks for feed rollers are held.

15. Cross-cut, miter and table saw according to claim 1, characterized in that the feed roller has a stitch which continues as a groove in the table.

16. Cross-cut, miter and table saw according to claims 1 to 14, characterized in that the plate has mounting receptacles on the back.

17. Cross-cut, miter and table saw according to claims 1 to 15, characterized in that the plate has guide grooves for sliding stops and the like.

18. Cross-cut, miter and table saw according to claims 1 to 17, characterized in that a location device is provided in the center between the plate and the table for storing the plate connected to the table and the saw unit in a base frame, wherein the storage facility enables the plate to be folded over by 180 °.

REPLACEMENT LEAF

19. Cross-cut, miter and table saw according to claims 1 to 18, characterized in that the table and the plate with their respective work surfaces are each at the same height when they are in the working position.

20. Cross-cut, miter saw and table saw according to claims 1 to 19, characterized in that a stop for limiting the path of movement of the saw blade for the penetrating into the gap and the area between the table and the plate saw when cutting and fermentation sawing is provided.

REPLACEMENT LEAF