| 摘要 |
<p>The device (1) has a frame (3) driven in a reciprocating rotary motion by a motor, and a plain bearing (9) comprising a housing. A stringer (6) is inserted into the housing, and a locking unit is movable between locking and unlocking positions for locking the stringer in the bearing. The bearing is connected to the frame by a connection pivot. The pivot allows the bearing to be moved from a lowered closing position to a lowered opening position perpendicular to the lowered closing position. An elastic unit urges the bearing in the lowered closing and opening positions.</p> |
