发明名称 Fine granular surface for tennis court - is prepared by machine with front and rear travel rollers with milling head and sweeping rollers between them
摘要 The machine is automotive (10), and has one front and one rear travel roller (12,13), one of which at least is motor-driven. Between these rollers, counterposed to the direction of travel and successively fitted, are a milling head (18) and at least one sweeping roller (20), all of which are motor-driven and engaging against the surface being prepared. The firmness with which the milling head is applied against the surface is adjustable. The sweeping rollers have a delivery device (24) extending their whole length which conducts away to a collection container material loosened by the milling head and picked up by the sweeping rollers.
申请公布号 DE4009581(A1) 申请公布日期 1991.10.02
申请号 DE19904009581 申请日期 1990.03.26
申请人 SCHELL, NORBERT, 7518 DIEDELSHEIM, DE 发明人 SCHELL, NORBERT, 7518 DIEDELSHEIM, DE
分类号 E01C19/26;E01C19/48;E01C23/088;E01C23/14;E01H1/04 主分类号 E01C19/26
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