| 摘要 |
PCT No. PCT/CA94/00578 Sec. 371 Date May 3, 1996 Sec. 102(e) Date May 3, 1996 PCT Filed Oct. 20, 1994 PCT Pub. No. WO95/11394 PCT Pub. Date Apr. 27, 1995A linear actuator has a drum, a stiff flexible ribbon wound on the drum, a device for rotating the drum at least to partially unwind the ribbon thereon, a guide funnel for gradually forming the ribbon into a tubular configuration as it comes off the drum, and an attachment device at a free end of the ribbon for connection to an object to be moved in a linear path. The actuator converts rotary motion to linear motion without the need for complex mechanical linkages.
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