초록 ▼

A gas spring for damping structural components, for example of a car, comprises two cylinders filled with gas, of which one cylinder is provided with a first piston and is movable in the other cylinder. The other cylinder has a piston rod extended centrally thereof and passing through the first pist

A gas spring for damping structural components, for example of a car, comprises two cylinders filled with gas, of which one cylinder is provided with a first piston and is movable in the other cylinder. The other cylinder has a piston rod extended centrally thereof and passing through the first piston. The piston rod carries at the free end thereof a second piston movable within the first cylinder.

대표청구항 ▼

A gas spring comprising a first cylinder filled with a gaseous medium and being closed at a bottom wall thereof; a second cylinder closed at a bottom wall and movable in said first cylinder in an axial direction thereof upon applying an external force to said second cylinder; a guide ring seal guidi

A gas spring comprising a first cylinder filled with a gaseous medium and being closed at a bottom wall thereof; a second cylinder closed at a bottom wall and movable in said first cylinder in an axial direction thereof upon applying an external force to said second cylinder; a guide ring seal guiding said second cylinder in said first cylinder upon the movement thereof; said second cylinder having an inner chamber and a front side opening and being provided with a first piston connected to said second cylinder at said opening, said first piston being axially displaceable in said first cylinder; said first cylinder including a piston rod centrally positioned therein, said piston rod having a free end carrying a second piston which is axially movably guided in said second cylinder, whereby the gas spring develops a pressure force in the direction counter to the action of said external force, wherein said first piston is formed as a damping piston, said first cylinder having a portion with a smaller inner diameter and a portion with a greater inner diameter; and a sealing member arranged between said first piston and said portion with a smaller inner diameter in a normal condition, so that in the case of an emergency and an increased pressure of a gaseous medium in said portion with a smaller diameter of said first cylinder, said first piston together with said sealing member is displaced by the increased pressure into said portion with a greater diameter and therefore a gaseous medium can safely escape through a gap which is thusly formed between said sealing member and said portion with a greater diameter of said first cylinder.