| 摘要 |
An automobiles lifter is provided to keep a tale gate open fully by expanding an elastic member with working pressure compensating fluid which changes into solid and causing the elastic member to contact with a piston. An automobiles lifter comprises a cylinder(2), a piston(4), and a working pressure compensating unit(6). The cylinder is connected to either a vehicle body or a tale gate and filled with working pressure. The piston is connected to either the vehicle body or the tale gate. The working pressure compensating unit is installed between the cylinder and the piston. The working pressure compensating unit contracts or expands according to temperature, thereby contacting with the piston or separating from the piston. The working pressure compensating unit includes an elastic member(30) and a working pressure compensating fluid(32). The elastic member has a chamber(30A) therein. The working pressure compensating fluid fills the chamber of the elastic member. The working pressure compensating fluid is urethane material.
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