| 摘要 |
PCT No. PCT/CH86/00021 Sec. 371 Date Dec. 11, 1986 Sec. 102(e) Date Dec. 11, 1986 PCT Filed Feb. 14, 1986 PCT Pub. No. WO86/04884 PCT Pub. Date Aug. 28, 1986.The carriage of a mobile crane (4) is provided with middle (1), rear (2), and front (3) outrigger pairs. The middle, double casing outrigger pair (1) is disposed between the frontmost rear wheels (7) and the rearmost front wheels (8), and has the largest outrigger spread (a) which is namely at least 1.66 times as great as the spread (b) of the rear, single casing outrigger pair (2). The front outrigger pair (3) has only two vertical cylinders (11, 12), and is not telescopically extendable transversely to the longitudinal axis (X) of the carriage. The centers of at least five of the six vertical cylinders (11, 12, 13, 14, 15) belonging to the three outrigger pairs (1, 2, 3) lie on the circular arc (10) having the center (A) of the slewing rim as the center (i.e., generating center) of said arc.
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