Abstract: A reciprocating mower unit (14) comprises a reduction gear (54) and a crank mechanism (56) arranged within a housing (24). The reduction gear (54) receives input rotary motion from a transmission shaft at a first, relatively higher, rotation speed, and deliver an output rotary motion to a gear output shaft (58) at a second, relatively lower, rotation speed, whereas the crank mechanism (56) converts the output rotary motion of the gear output shaft (58) to an oscillating, anti-phase motion of a pair of mowing blades (32a, 32b) about a common oscillation axis (A1). The reciprocating mower unit (14) comprises an input shaft (48) provided with a coupling interface (49) for releasably coupling the input shaft (48) to the transmission shaft.

Abstract: A lawn mower is provided with a housing that has a discharge opening for discharging cut material. A covering device is arranged at the housing and is provided with a cover and a locking device. The cover can pivot about a pivot axis. The cover covers the discharge opening in a closed state of the cover and opens the discharge opening in an open position of the cover. In the closed state of the cover, the cover can be locked by the locking device in a locked position of the cover. The cover is moveable relative to the housing in a direction of the pivot axis. The cover is unlocked from the locked position of the cover by a movement of the cover in the direction of the pivot axis.