US Patent 9027283 Sliding door

In a sliding door with a door panel supported by a carriage disposed on a guide rail so as to foe movable between spaced door stops, the door stops include shock absorbers and the carriage has contact elements for contact with the shock absorbers. The shock absorbers further include return springs which are compressed by the engagement of the sliding door panel, the sliding door panel being lockable in its end positions by a locking arrangement for retaining it in an end position.