Patent ID: 8733484

Claim:
A shutter system for a grille of an automotive vehicle comprising: a first vane set disposed at a first grille opening section configured to pivot to a master position selected from a closed position and a plurality of open positions; a second vane set disposed at a second grille opening section configured to pivot to a slave position corresponding to the master position, including a closed position and a plurality of open positions; an actuator motor coupled to the first vane set for controllably placing the first vane set to a selected master position; and a linkage coupled between the first and second vane sets for moving the second vane set to the slave position corresponding to the master position of the first vane set selected by the actuator motor, wherein the linkage is comprised of a compensation spring configured to undergo compression when the first and second vane sets are placed in the closed positions, and wherein the linkage is comprised of a limit strap for imposing a limit on expansion of the compensation spring.