US Patent 7063364 Bumper arrangement

A moveable bumper arrangement. The moveable bumper arrangement includes an elongated bumper member, an end bumper member, and a mechanism coupled to the end bumper member. The mechanism allows substantially translational movement of the end bumper member with respect to the elongated bumper member from a first position where the end bumper member is positioned at an end of the elongated bumper member to a second position where the end bumper member is spaced apart from the elongated bumper member.