| 摘要 |
A hydraulic shock absorber including an elongated body, closed at first and second opposite ends thereof, the elongated body containing a quantity of liquid. A piston is mounted for axial movement within the body and has longitudinally extending holes therein causing communication between first and second opposite chambers defined, respectively, in the body between the piston and the first and second ends of the body. The piston is able to be activated, in one direction, by a thrust rod extending axially within the first chamber of the body and is pushed, in the other direction, by a compression spring lodged in the second chamber of the body. The shock absorber further includes an internal coaxial bushing affixed to the second end of the body, extending over one part of the length of the body, in the direction of the first end of the body, and in which the piston is lodged freely sliding, the second chamber being defined in the bushing between the piston and the second end of the body. A deformable tubular membrane is further provided which includes a first part engaged with the bushing, so as to be tightly held between the bushing and the body, and a second part extending freely beyond the internal end of the bushing, in the direction of the first end of the body. Further, a thrust rod freely rests, by a first end, against the central part of the piston, which extends axially, from the piston, in the direction of the first end of the body and to the second end to which the end of the second part of the deformable tubular membrane is affixed which defines, jointly with the bushing, the thrust rod and the piston, the first chamber of the body, and means for guidance of the second end of the thrust rod within the body. |
