초록 ▼

In a shock absorber for a vehicle, a piston rod extends through a piston rod guide into a cylinder and its end within the cylinder is attached to a damping piston. A stop assembly is mounted on the piston rod close to the damping piston and spaced from the piston rod guide. The stop assembly include

In a shock absorber for a vehicle, a piston rod extends through a piston rod guide into a cylinder and its end within the cylinder is attached to a damping piston. A stop assembly is mounted on the piston rod close to the damping piston and spaced from the piston rod guide. The stop assembly includes an axially extending sleeve laterally enclosing the piston rod. The end of the sleeve can be secured directly to the piston rod or a support device can be secured to the piston rod and disposed in contact with the end of the sleeve. When the piston rod is displaced relative to and out of the cylinder, the stop assembly contacts the piston rod guide. The piston rod can be a solid rod member or a tubular member with solid end connections.

대표청구항 ▼

Shock absorber for vehicles comprising (a) an axially elongated cylinder having a first end and a second end, (b) a piston rod guide secured in the first end of said cylinder, (c) an axially elongated piston rod extending through and guided by said piston rod guide into said cylinder and having a fi

Shock absorber for vehicles comprising (a) an axially elongated cylinder having a first end and a second end, (b) a piston rod guide secured in the first end of said cylinder, (c) an axially elongated piston rod extending through and guided by said piston rod guide into said cylinder and having a first end located within said cylinder and a second end located outwardly from said piston rod guide in the first end of said cylinder, said piston rod being axially displaceable relative to said cylinder and piston rod guide between two end positions, a first end position in which the first end of said piston rod is close to said second end of said cylinder, and a second end position in which said first end of said piston rod is more remote from said second end of said cylinder than in said first end position, (d) a damping piston secured to the first end of said piston rod within said cylinder, (e) stop means arranged within said cylinder and located between said damping piston and said piston rod guide, said stop means including 1. an axially elongated rigid sleeve unit coaxial with and closely encircling said piston rod and being tensioned in the circumferential direction for tightly gripping said piston rod, said elongated sleeve unit having a first end closely spaced from said damping piston and a second end more remote from said damping piston and closer to said piston rod guide, 2. said sleeve unit including support means encircling said piston rod at the first end of said elongated sleeve unit for securing said elongated sleeve unit against axial movement relative to said piston rod towards said damping piston, 3. a resilient ring encircling said piston rod and located between the second end of said elongated sleeve unit and said piston rod guide, wherein said piston rod adjacent the first end thereof has a groove formed in and extending around the circumferential surface thereof, said groove being closely spaced from said damping piston in the range of 2 to 10 mm therefrom, said support means including at least one projection formed on said sleeve unit and extending inwardly therefrom into said groove for securing said sleeve unit to said piston rod, and wherein said elongated sleeve unit pushes said resilient ring against said piston rod guide in the second end position of said piston rod, the distance between said damping piston and said piston rod guide being in the range of 100 to 200 mm in said second end position of said piston rod.