| 摘要 |
PROBLEM TO BE SOLVED: To provide a gas spring easily held at an arbitrary opening of a back door. SOLUTION: Relating to an internal diameter da of a rod guide 103 guiding a piston rod 101, a brim part 103A diametrically spread in eccentricity is formed in a end part upper surface of a cylinder 102, also an internal diameter db engaged with the piston rod of a rotary guide 100 turnably pivoted in the brim part is eccentrically formed relating to a pivotal mounting part in the brim part of the rod guide, the rotary guide is turn operated. In this way, the internal diameter of the rotary guide is partially brought into contact with the piston rod to form a spring and to lock the piston rod. |
