Impact absorber

An impact absorber comprising:

• a housing;
• a pair of cylinders arranged in said housing and having a closure at one end thereof and a closed end, a piston arranged in each of the pair of cylinders for relative sliding movement within each of the pair of cylinders, a piston rod connected to the piston and extending through the cylinder closure to the exterior of the cylinder and said housing;
• and
• a third cylinder provided with an opening at each of its ends, two pistons arranged for relative sliding movement within the third cylinder, spring means arranged axially between the two pistons in the third cylinder, the spring means having one end engaged with one of the two pistons and the other end engaged with the other of the two pistons, characterized in that
• said pair of cylinders are parallel and separated from each other, a first aperture formed through the walls of each of said pair of cylinders facing each other adjacent said closure end, a second aperture formed through the walls of each of said pair of cylinders facing each other adjacent said closed end,
• said third cylinder being parallelly arranged between said pair of cylinders such that a first gap is defined by the walls of one of said pair of cylinders, said third cylinder and said housing, and a second gap is defined by the walls of the other of said pair of cylinders, said third cylinder and said housing, said first gap and second gap each communicating with said third cylinder through said openings, with said pair of cylinders through said first aperture and said second aperture of said pair of cylinders.