Motor saw, especially motor chain saw

In a motor driven chain saw having a chain drive socket adapted for being driven by the output shaft of the saw motor, a clutch having one element connected to the motor shaft and another element for driving the sprocket, said clutch elements being normally in driving engagement, and a follower member forming a part of one of said clutch elements and moveable in the axial direction of the motor shaft during engaging and disengaging of the said clutch elements, said follower member being an axially resilient annular disc coaxial with the motor shaft, said disc having internal teeth, the other clutch element having external teeth engaged by the said internal teeth when the clutch is engaged, said one clutch element including a second member nonrotatably connected to said disc in a region thereof radially outwardly from the said internal teeth.

In a motor driven chain saw having a chain drive socket adapted for being driven by the output shaft of the saw motor, a clutch having one element connected to the motor shaft and another element for driving the sprocket, said clutch elements being normally in driving engagement, and a follower member forming a part of one of said clutch elements and moveable in the axial direction of the motor shaft during engaging and disengaging of the said clutch elements, said follower member is an axially resilient annular disc coaxial with the motor shaft, said disc comprising annular slot means therein dividing the disc into an inner and outer region, said inner region having internal teeth, the other clutch element having external teeth engaged by the internal teeth when the clutch is engaged.

In a motor driven chain saw having a chain drive socket adapted for being driven by the output shaft of the saw motor, a clutch having one element connected to the motor shaft and another element for driving the sprocket, said clutch elements being normally in driving engagement, and a follower member forming a part of one of said clutch elements and moveable in the axial direction of the motor shaft during engaging and disengaging of the said clutch elements, said follower member being an internally toothed spring disc, the other clutch element having external teeth which engage the internal teeth when the clutch is engaged, said one clutch element comprising a second member rotatable on said other clutch element and connected to said spring disc radially outwardly from said internal teeth.

In a motor driven chain saw having a chain drive socket adapted for being driven by the output shaft of the saw motor, a clutch having one element connected to the motor shaft and another element for driving the sprocket, said clutch elements being normally in driving engagement, and a follower member forming a part of one of said clutch elements and moveable in the axial direction of the motor shaft during engaging and disengaging of the said clutch elements, a release member moveable in the axial direction and engageable with said follower member for movement thereof between clutch engaged and clutch disengaged positions, said release member is coaxial with the motor shaft, said release member is a ring, and cam means for actuating said ring in axial movement to control the engagement and disengagement of said clutch, said ring being spring biased in clutch engaging direction, said means engaging said inclined surfaces is a disc shaped carrier having said ring mounted thereon on the side facing said follower member and having pin means engaging said inclined surfaces.