Abstract: The device concerns a driving gear for Convertible public transportation seats with variable spacing (2a, 2b, 2c) along a dimensional axis (3), the seats (2a, 2b, 2c) being mounted on a structure (4) with several adjacent seats (2a, 2b, 2c), with each of them separated from the next by a space between frames (5) and sliding on the structure (4) along the dimensional axis (3). A driving gear comprises a worm (6) whose axis (7) is parallel to the dimensional axis (3) and which is coupled with at least one nut (8) attached to the seat (2a, 2b, 2c) to be driven, in such a way that when the worm (6) is forced to rotate in one direction the seat (2a, 2b, 2c) is driven from one extreme position to another and when the worm (6) is forced to rotate in the other direction the seat (2a, 2b, 2c) is driven to move in the opposite direction.
Type:
Grant
Filed:
May 1, 1995
Date of Patent:
October 7, 1997
Assignee:
Societe Industrielle et Commerciale de Materiel Aeronautique (societe anonyme)
Abstract: A convertible seat with variable dimensions for public transportation, comprises back lengthening elements, association and positioning device to fit the lengthening elements on either side of the back opposite to the side-edges, and to position the lengthening elements between a retracted position corresponding to a position of minimum seat dimensions along a dimensional axis and a stretched position corresponding to a position of maximum seat dimensions along the dimensional axis.
Type:
Grant
Filed:
January 23, 1995
Date of Patent:
December 17, 1996
Assignee:
Societe Industrielle et Commerciale de Materiel Aeronautique (societe anonyme)