| 主权项 |
1. A gas spring and gas damper assembly comprising:
a first end member; a second end member disposed in longitudinally-spaced relation to said first end member such that a longitudinal axis is at least partially defined therebetween, said second end member including an end wall and a side wall extending longitudinally from along said end wall in a direction away from said first end member, said side wall having an inner surface and an outer surface, and said end wall and said side wall together at least partially defining an end member cavity that is at least partially exposed to an ambient external atmosphere; a third end member disposed within said end member cavity of said second end member, said third end member including an end wall and a side wall extending longitudinally from along said end wall in a direction away from said first end member, said side wall of said third end member having an outer surface; a mounting plate including an outer peripheral wall, said mounting plate disposed within said second end member cavity between said end wall of said second end member and said third end member with at least a portion of said outer peripheral wall spaced radially inward from said side wall of said second end member; an elongated rod extending through said end wall of said second end member and said mounting plate, said elongated rod secured between said first and third end members and operative to maintain said third end member in a substantially fixed axial position relative to said first end member; a first flexible wall extending peripherally about said axis and longitudinally between first and second ends, said first end of said first flexible wall secured to said first end member such that a substantially fluid-tight seal is formed therebetween, said second end of said first flexible wall secured to said second end member such that a substantially fluid-tight seal is formed therebetween, said first flexible wall at least partially defining a first pressurized gas chamber between said first and second end members, and said first flexible wall forming a first rolling lobe along said outer surface of said side wall of said second end member; and, a second flexible wall extending peripherally about said axis and longitudinally between first and second ends, said first end of said second flexible wall secured along said outer peripheral wall of said mounting plate such that said first end of said second flexible wall is attached to said second end member with a substantially fluid-tight seal formed therebetween, and said second end of said second flexible wall secured to said third end member such that a substantially fluid-tight seal is formed therebetween, said second flexible wall at least partially defining a second pressurized gas chamber between said second and third end member, and said second flexible wall forming a second rolling lobe between said inner surface of said side wall of said second end member and said outer surface of said side wall of said third end member; upon displacement of said first and second end members relative to one another in an axial direction, said first rolling lobe being displaceable along said outer surface of said side wall of said second end member and said second rolling lobe being displaceable along said inner surface of said side wall of said second end member and along said outer surface of said side wall of said third end member. |
