专利名称：SPRING ELEMENT 发明人：W. MOLDERSspring framework是什么框架的
申请号：AU5880980
申请日：19800527
公开号：AU5880980A
公开日：
19810604
专利内容由知识产权出版社提供
摘要：In the illustrative embodiments of the invention described, a main gas spring unit used to raise and lower a movable leg rest member of a bed construction includes a further gas spring device axially connected end-to-end to the main gas spring unit. The addition of the gas spring device allows the leg rest member to be raised, with only a small manual effort, to a higher level than is possible with the main gas spring unit alone. Preferably the internal force exerted on the piston rod of the main gas spring unit is greater than the internal force exerted on the piston rod of the gas spring device. The cylinder members of the main gas spring unit and the gas spring device may be formed by a common tubular member, with the two units being separated by a common movable wall. Alternatively, the cylinder members can be separate self-contained members that are rigidly attached at adjoining end walls thereof.
申请人：STABILUS G.M.B.H.
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