Patent ID: 7870988
Filing Date: 2011-01-18
Classification: B25C

Abstract:
1. A hand-held spring drive-in power tool for driving in fastening elements, comprising a guide ( 12 ); a drive-in ram ( 13 ) displaceable in the guide ( 13 ); drive means ( 30 ) for driving the drive-in ram ( 13 ) and including at least one preloaded drive spring ( 31 ); a tensioning device ( 70 ) for preloading the drive spring ( 31 ); a transmission element located between the tensioning device and the drive spring ( 70 ) ( 33 ) for transmitting a tensioning force from the tensioning device ( 70 ) to the drive spring ( 31 ); at least one roller ( 34 ) for guiding the transmission element ( 33 ); a support element ( 35 ) for supporting the at least one roller ( 34 ); and at least one rolling bearing ( 40 ) for supporting the at least one roller ( 34 ) on the support element ( 35 ).