| 摘要 |
1. The trestle for the carrying structure of a belt conveyor consists of a frame, frame-securing catches and holders for vertical and horizontal runners, characterised by that there are holders of horizontal runners which are open (1) or closed (2). The holders are positioned in an alternated fashion, so that each runner (3) is secured simultaneously in an open holder (1) and a closed holder (2). The runners (3) themselves are located on the opposite sides of the frame (4). The holders (1, 2) are fixed to the frame (4) at an angle, in its cross-section plane. They are positioned, with respect to horizontal plane, at the angle, which results from the difference of diameter between the frame (4) and the runners (3), so that the top surface of the runners (3) fixed in the holders (1, 2) is above the frame (4) surface, while the holders (1, 2) are below it.
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