| 摘要 |
A sand sprinkler (1) for vehicle wheels, with a trapezoidal hopper (4) for sand storage, and a dual rotary feeder (3). On the periphery of the rotary feeder (3) are mounted two sets of blades (6, 7), each set being staggered with a fraction of a rotation in relation to the other set. Rubber flaps (5, 5') are mounted as an extension of the sides at the lower extremity of the trapeze, engaging between the blades (6, 7). A sand retainer (8) is provided at the bottom of the hopper (4) to reduce the quantity of sand available.
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