Gear arrangement for a handheld electrical apparatus, and handheld electrical apparatus having the gear arrangement

A gear arrangement for a handheld electrical apparatus, the gear arrangement comprising:

• a housing having a first housing section and a second housing section;
• said housing defining a re-lubrication opening for introducing lubricant into said housing;
• a planetary gear defining a central axis and being disposed in said first housing section for reducing a gear ratio of a driving movement provided by a drive motor of the handheld electrical apparatus;
• an eccentric gear unit disposed in said second housing section for converting a rotational driving movement, of which the gear ratio has been reduced by the planetary gear, into an oscillation driving movement;
• said first housing section being assigned an inflow opening for introducing lubricant into said first housing section and a drain outlet for discharging lubricant from said first housing section;
• wherein said re-lubrication opening and said inflow opening are interconnected by a lubricant channel;
• and, said lubricant channel runs through a drive shaft;
• and,
• wherein a cross channel branches off from said lubricant channel;
• and, said cross channel opens into said second housing section on a circumference of the drive shaft.

A handheld electrical apparatus comprising:

• a drive motor;
• a gear arrangement having a housing, a planetary gear, and an eccentric gear unit;
• said housing having a first housing section and a second housing section;
• said housing defining a re-lubrication opening for introducing gear grease as lubricant from outside into said housing;
• said planetary gear defining a central axis and being disposed in said first housing section for reducing a gear ratio of a driving movement provided by said drive motor;
• said eccentric gear unit disposed in said second housing section for converting a rotational driving movement, of which the gear ratio has been reduced by said planetary gear, into an oscillation driving movement;
• and,
• said first housing section being assigned an inflow opening for introducing lubricant into said first housing section and a drain outlet for discharging lubricant from said first housing section;
• and,
• wherein said drain outlet is connected to a drain channel which opens into said second housing section.