| 摘要 |
AN ENGINE FRAME (7) AND COUNTER-ROLLER SUPPORT (9) ASSEMBLY PROVIDES FOR ADJUSTABLE POSITIONING OF THE SUPPORT WITH RESPECT TO THE ENGINE FRAME, THUS ALLOWING DIFFERING CABLE LINE SPACING TO BE ACCOMMODATED. THE SUPPORT INCLUDES A PAIR OF CARRIER ELEMENTS (33).THE COUNTERROLLER (30) IS SUPPORTED ON AN AXLE (32) IN THE BORE HOLES (33.7) OF THE CARRIER ELEMENTS. THE CARRIER ELEMENTS (33) ARE IDENTICAL AND EACH IS IN THE FORM OF A PLATE (33.3) WITH A HEADLINER (33.5) AND REINFORCEMENT RIBS (33.6). THE HEADLINER HAS A CONTACT SURFACE WITH A NUMBER OF TWO-STAGE BORE-HOLES WHICH SERVE FOR THE FASTENING OF THE COUNTER-ROLLER SUPPORT TO THE ENGINE FRAME. THE BORE-HOLES (33.7) ARE ARRANGED SUCH THAT THE COUNTER-ROLLER SUPPORT CAN BE FASTENED IN DIFFERENT POSITIONS,ACCORDING TO THE REQUIRED CABLE-LINE SPACING BETWEEN CAB CABLES AND COUNTERWEIGHT CABLES.(FIG 2C)
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