| 摘要 |
1,129,032. Linkwork; gearing for converting rotary motion into reciprocating motion. SINGER COBBLE Ltd. 22 May, 1967 [21 May, 1966], No. 22745/66. Headings F2K and F2Q. Rotation of an input shaft 12 is converted into reciprocation of an output member 23 by mechanism comprising a connecting rod 11, mounted by means of a bearing 13 on an eccentric on shaft 12, an intermediate member 14, connected at one end to the rod 11 and pivotally mounted at the other end by means of an adjustable block 15, and a shaft 19, connected by links 18a, 18b to intermediate member 14 and carrying a pinion 21 which engages a rack 22 secured to output member 23. The block 15 carries trunnions 15a which are mounted in a structure 16 which may be moved along a guide 17 in order to vary the stroke of the output member 23. Axial movement of intermediate member 14 is prevented by a rod 14b pivotally secured to member 14 and mounted in spaced guide members 14c. |
