| 摘要 |
A wraparound brushing device 20 (FIGS. 1-4) has a linkage carrying a brush and urged toward a normal position by a spring and a counterweight. A top brushing device 120 (FIGS. 5 and 6) includes a pair of linkages at each side which fold as the brush rolls over the top of a car and then unfold to cause the brush to follow the rear surfaces of the car. Wraparound brushing devices 220 (FIG. 7), 320 (FIG. 8), 420 (FIG. 9) and 520 (FIG. 10) are moved around moving cars solely by the action of rotating brushes and constantly operative biasing means.
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