Transmission,申请号US19950412713-传众专利搜索

Transmission

申请公布号：US5547428(A)

申请号：US19950412713

申请日期：1995.03.28

申请公布日期：1996.08.20

申请人：

MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

发明人：MATSUDA, YUTAKA;SHIMIZU, KAORU

分类号：F16H9/10;F16H55/54;(IPC1-7):F16H55/54

主分类号：F16H9/10

摘要：A transmission having at least one variable outer diameter pulley which includes a generally cylindrical pipe having four equally spaced penetrating holes radially disposed in its cylindrical wall, a sealing means having a diaphragm positioned adjacent each of the penetrating holes and fitted to the pipe support, and sliders forming a pulley peripheral face fitted into each penetrating hole to be able to slide smoothly. Each slider is moved by diaphragms in a direction so the pulley outer diameter expands by compressed air supplied through a fluid supply passage in a rotary axle which supports the pulley. Exhausting the compressed air causes the pulley outer diameter to decrease and restores the pulley to its original size by a tension coil spring around the pulley periphery.