| 摘要 |
The invention relates to an arrangement in a snowmobile equipped with an apparatus for intensifying steering, which intensifying apparatus consists o f the ski (1) of the snowmobile, which comprises a drum (3) rotated by means o f actuators (2), the drum forming at least a part of the bearing surface (4) o f the ski (1), the rotation axis (5) of the drum (3) being fitted with bearing s in such a way that when the drum (3) rotates, the circumferential surface (6 ) of the drum moves transversely with respect to the longitudinal axis of the ski (1), and which drum (3) is provided with one or more ridges (8, 8') protruding from its circumferential surface (6), the ridges being essentiall y parallel with the rotation axis (5) of the drum (3). The drum (3) is provide d with one or more locking means (20) preventing the rotation of the drum (3), the locking means being arranged to lock the drum (3) into a predetermined position when the apparatus for intensifying steering is not used and, correspondingly, to allow the drum (3) to rotate when the apparatus for intensifying steering is used.
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