| 摘要 |
The invention relates to a compression-resistant drive chain for an actuating device (1), said chain being provided with several chain links (4, 4') that are connected in an articulated manner by flat link sections (21). The links (4, 4') consist of at least two pivoting elements (6, 6', 7, 7') comprising bearing surfaces (A), which are complementary in at least some sections, run in the longitudinal direction of the chain (M) and comprise sliding surfaces (G) in the form of arc-contour sections. An actuating force (F) of a drive member (9), which is aligned transversally to the longitudinal direction of the chain (M) and is configured as a forcing bolt (14), can be introduced into the compression-resistant chain (3), in such a way that the chain links (4,4') can be displaced into (arrow F') and retrieved from a compression-resistant position by means of a sprocket wheel (5). According to the invention the forcing bolt (14) engages between the neighbouring pivoting elements (6, 7, 6', 7') in the region of concave arc contours (8') that form respective sub-sections of the two bearing surfaces (A). |
