Circular saw arrangement

Claim 2

Circular saw arrangement according to claim 1, characterized in that a fence arrangement (6) is provided at the first side of said table plate (3) which fence arrangement (6) forms a positioning face for positioning the workpiece (W) to be cut.

Claim 3

Circular saw arrangement according to claim 2, characterized in that said fence arrangement (6) is provided with a recess (7) in the area near to the saw blade (44) to permit passing through of a portion of the saw blade (44).

Claim 4

Circular saw arrangement according to claim 3, characterized in that said rotation axis (14) of said support element (15) is located in the area of the recess (7) of said fence arrangement (6).

Claim 5

Circular saw arrangement according to claim 4, characterized in that said rotation axis (14) of said support element (15) is located in the plane of the positioning face of the fence arrangement (6).

Claim 6

Circular saw arragement according to one of claims 2 to 5, characterized in that said saw unit is connected to said support element (15) at the side of the fence arrangement (6) opposite of said positioning face.

Claim 7

Circular saw arrangement according to claim 6, characterized in that the mounting area for connecting the saw unit to said support element (15) is located in a smaller distance from said rotation axis (14) of the support element (15) than the outer end of said through slot (17).

Claim 8

Circular saw arrangement according to one of claims 1 to 7, characterized in that at the first side of the table plate (3) a recess (7) is provided for receiving at least the section of said support element (15) provided with said through slot (17).

Claim 9

Circular saw arrangement according to claim 8, characterized in that the depth of the recess (11) equals the height of the section of the support element (15) received therein.

Claim 10

Circular saw arrangement according to claim 8 or 9, characterized in that lateral wall portions (12, 13) of said recess (11) are acting as stops for limiting the movement of the support element (15) out of the centre position.

Claim 11

Circular saw arrangement according to one of claims 1 to 10, characterized in that said through slot (17) is provided in an elongate section (16) of said support element (15) the elongate dimension of said elongate section (16) extending in the longitudinal direction of said through slot (17).

Claim 12

Circular saw arrangement according to one of claims 1 to 11, characterized in that said saw blade (44) is pivotable about a pivot axis (56) to change the inclination of the saw blade (44) with respect to the main plane of the table plate (3) in the first and in the second position thereof wherein said pivot axis (56) extends in parallel to the longitudinal direction of said through slot (17).

Claim 13

Circular saw arrangement according to claim 12, characterized in that said pivot axis (56) is located in the longitudinal center plane of said through slot (17).

Claim 14

Circular saw arrangement according to claim 12 or 13, characterized in that the pivot axis (56) is located at half of the height between the side of the section of the support element (15) provided with the through slot (17) facing away from the table plate (3) and the second side of the table plate (3) located opposite to said section.

Claim 15

Circular saw arrangement according to one of claims 1 to 14, characterized in that at least in its centre position the saw blade (44) may be lowered beyond said cutting position for chop cutting.

Claim 16

Circular saw arrangement comprising - a frame (1), - a table plate (3) mounted on the upper end portion of said frame (1) which table plate (3) is pivotable between a first position in which its first side is facing upwardly and a second position in which its second side is facing upwardly, - restraining means (4) for a non-movable connection of the table plate (3) and the frame (1) in the first position and in the second position of the table plate (3), - a support element (15) rotatably mounted to said table plate (3) so that at least in the first position of said table plate (3) it can be rotated about a rotation axis (14) extending vertically with respect to the main plane of the table plate (3), and - a saw unit mounted on said support element (15) which saw unit contains a powered saw blade (44), wherein in the first position of the table plate (3) the saw blade (44) can be moved from a center position to a mitre position and for cutting a workpiece (W) can be moved downwardly from an elevated position and wherein in the second position of the table plate (3) the saw blade (44) can be held in a sawing position in which it is located in its center position and in which a section of the saw blade (44) extends through a through slot (17) in the support element (15) and projects upwardly beyond the second side of the table plate (3), characterized in - that said support element (15) is provided at the first side of the table plate (3) and extends across a part of said first side, - that a stop arrangement (49, 50, 51,52) is provided limiting the downward movement of the saw blade (44) from the elevated position to a lowered cutting position in which cutting position the saw blade (44) extends into the through slot (17) and the lowermost peripheral point of the saw blade (44) is located above the portion of the table plate (3) covered by the support element (15), - that the saw blade (44) at least in a lowered position is movable in longitudinal direction of the through slot (17), and - that an opening (10) is provided in the table plate (3) which opening in the centre position of the saw blade (44) is overlaid by at least a portion of the through slot (17) of the support element (15) wherein in the second position of the table plate (3) the saw blade (44) in its sawing position extends through the through slot (17) of the support element (15) and through the opening (10) in the table plate (3).

Claim 17

Circular saw arrangement according to claim 16, characterized in that the distance between the mounting area for the saw unit on the support element (15) and the rotation axis (14) of the support element (15) is smaller that the distance between the outer end of the through slot (17) and the rotation axis (14) of the support element (15).

Claim 18

Circular saw arrangement according to one of claim 16 or 17, characterized in that at the first side of the table plate (3) a recess (11) for receiving the through slot (17) containing section of the support element (15) is provided.

Claim 19

Circular saw arrangement according to claim 18, characterized in that the depth of said recess (11) equals the height of the part of the support element (15) received therein.

Claim 20

Circular saw arrangement according to claim 18 or 19, characterized in that said recess (11) contains lateral wall sections (12, 13) forming stops for defining the area of mitre positions of the saw blade (44).

Claim 21

Circular saw arrangement according to one of claims 18 to 20, characterized in that the material thickness of the table plate (3) in the area of said recess (11) is at least about equal to the height of the section of the support element (15) comprising the through slot (17).

Claim 22

Circular saw arrangement according to claim 21, characterized in that the arrangement (22, 30) for mounting the saw unit on the support element (15) is divided so that the saw blade (44) can be moved about a pivot avis (56) extending in parallel to the longitudinal direction of the through slot (17) to an inclined position with respect to the main plane of the table plate (3) when the table plate (3) is in the first position and when in the second position of the table plate (3) the saw blade (44) is in its sawing position.

Claim 23

Circular saw arrangement according to claim 22, characterized in that the pivot axis (56) is located at half the distance between the side of the section of the support element (15) comprising the through slot (17) opposite to the table plate (3) and the second side of the table plate (3) opposite to said section.

Claim 24

Circular saw arrangement according to claim 22 or 23, characterized in that the pivot axis (56) is located in the longitudinal centre plane of the through slot (17).

Claim 25

Circular saw arrangement according to one of claims 16 to 24, characterized in that the support element (15) comprises an elongate section (16) which extends in the direction of the through slot (17) and contains at least the outer portion of the through slot (17).

Claim 26

Circular saw arrangement according to claim 26, characterized in that said elongate section (16) of the support element (15) extends from a round section in the middle of which the rotation axis (14) is located.

Claim 27

Circular saw according to one of claims 16 to 26, characterized by a fence arrangement (6) mounted on the first side of the table plate (3) and located between the area for connecting the saw unit to the support element (15) and the outer end of the through slot (17) in the support element (15) which outer end is farthest remote from said area of connection wherein in the centre position of the saw blade (44) a positioning face formed by the fence arrangement (6) extends in parallel to the axis of rotation (42) of the saw blade (44) and is provided with a recess (7) in the area adjacent to the saw blade (44).

Claim 28

Circular saw arrangement according to one of claims 16 to 27, characterized in that the stop arrangement (49, 50, 51, 52) comprises a stop (50) adjustable in the direction of the movement of the saw blade (44) in longitudinal direction of the through slot (17) which stop (50) cooperates with a stop face (52) which upon lowering of the saw blade (44) is moved correspondingly and which limits the lowering movement of the saw blade (44) by engagement with the stop (50).

Claim 29

Circular saw arrangement according to claim 28, characterized in that in the second position of the table plate (3) said stop (50) is locking the saw blade (44) in its cutting position by engagement with a stop recess (53).