| 摘要 |
<p>A lift-assisted device(10) including a seat portion (20), a seat portion support section (40) which supports the seat portion (20), a base portion (80), and an undercarriage portion (60) which comprises at least one scissor linkage member (62). Each scissor linkage member (62) includes a first member pivotally connected to a second member near a center portion of the first and second member. A pneumatic bag (90) is located between the seat portion (20) and the base portion (80), a pneumatic cylinder (92) is also located between the seat portion (20) and the base portion (80). A pneumatic powering means (99) is provided for powering the pneumatic bag (90) and/or pneumatic cylinder (92). First ends (68) of the first and second member of the scissor linkage member (62) are slidably connected to one end of the seat portion, with opposed ends (66) of the first and second members being fixedly connected to second ends of the seat and base portion.</p> |
