Electrically driven device

An electrically driven shaving device comprising:

• a housing,
• an electric motor mounted in the housing and comprising a drive shaft having a first rotary axis,
• a drive pin connected to the drive shaft eccentrically with respect to the rotary axis such that the drive pin rotates eccentrically, and
• at least one driven shaft having a second axis and mounted for performing a reciprocating motion relative to the housing;
• and being adapted to drive a cutter element,
• wherein the at least one driven shaft is indirectly coupled to the drive shaft by the drive pin and a gear mechanism converting a rotary motion of the drive shaft into the reciprocating motion of the at least one driven shaft, wherein
• the gear mechanism comprises a floating bearing coupled to the drive pin, one intermediate shaft pivotably mounted in the housing, at least one elastically deformable element coupled to the housing at a location spaced away from the motor and to the floating bearing, and a crank arm having an end near the intermediate shaft and spaced away from the first rotary axis, the crank arm coupling the intermediate shaft to the floating bearing thereby converting the rotary motion of the drive shaft via the drive pin causing movement of the floating bearing such that the crank arm translates the movement of the floating bearing into an oscillating rotating movement of the intermediate shaft about a third rotary axis which extends in the longitudinal direction of the intermediate shaft, wherein the intermediate shaft is coupled to the at least one driven shaft by a pivotable bridge such that the intermediate shaft is offset with respect to the at least one driven shaft.

An electrically driven shaving device comprising:

• a housing,
• an electric motor mounted in the housing and comprising a drive shaft having a first rotary axis,
• a drive pin connected to the drive shaft eccentrically with respect to the rotary axis such that the drive pin rotates eccentrically, and
• at least one driven shaft having a second axis and mounted for performing a reciprocating motion relative to the housing, and being adapted to drive a clutter element,
• wherein the at least one driven shaft is indirectly coupled to the drive shaft by the drive pin and a gear mechanism converting a rotary motion of the drive shaft into the reciprocating motion of the at least one driven shaft, wherein
• the gear mechanism comprises a floating bearing coupled to the drive pin, one intermediate shaft pivotably mounted in the housing, at least one elastically deformable element coupled to the housing and to the floating bearing, and a crank arm having an end near the intermediate shaft and spaced away from the first rotary axis, the crank arm coupling the intermediate shaft to the floating bearing thereby converting the rotary motion of the drive shaft via the drive pin causing movement of the floating bearing such that the crank arm translates the movement of the floating bearing into an oscillating rotating movement of the intermediate shaft about a third rotary axis which extends in the longitudinal direction of the intermediate shaft, wherein the intermediate shaft is coupled to the at least one driven shaft by a pivotable bridge such that the intermediate shaft is offset with respect to the at least one driven shaft.