Patent ID: 7451546

Claim:
A hand-held jigsaw machine with a machine housing ( 11 ), a saw blade ( 13 ) that is drivable in a reciprocating motion by a motor and that includes a sawtooth strip ( 131 ) and a saw blade back ( 132 ) diametrically opposed thereto, with a support device ( 20 ) with a support roller ( 23 ) that supports the saw blade on its back ( 132 ), a holder ( 22 ) that is fixed to the housing ( 11 ) and accommodates the support roller ( 23 ) between two arms ( 222 , 223 ), and a guide device ( 21 ) for guiding and supporting the saw blade ( 13 ) transversely to the saw direction and that includes guide elements ( 24 , 25 ) located on opposite sides of the saw blade ( 13 ) at an adjustable distance from each other, wherein the guide device ( 21 ) is integrated in the holder ( 22 ) of the support device ( 20 ), wherein the guide elements ( 24 , 25 ) are designed as guide disks ( 26 , 27 ) that have an outer diameter that is greater than the outer diameter of the support roller ( 23 ) and enclose the support roller ( 23 ) between them, wherein the guide device ( 21 ) includes a displacement member ( 28 ) for axially displacing the guide disks ( 26 , 27 ), and wherein the displacement member ( 28 ) is coupled with a manual actuating member ( 29 ), wherein the displacement member ( 28 ) has two identical displacement disks ( 30 , 31 ), the axial width of which varies across the circumference, wherein one displacement disk ( 30 , 31 ) each is located between a guide disk ( 26 , 27 ) and an arm ( 222 , 223 ) of the holder ( 22 ), and wherein a compression spring ( 37 ) is located in the interior of support roller ( 23 ) that bears against the two guide disks ( 26 , 27 ) and presses against the displacement disks ( 30 , 31 ).