| 摘要 |
PCT No. PCT/FR88/00265 Sec. 371 Date Jan. 23, 1989 Sec. 102(e) Date Jan. 23, 1989 PCT Filed May 24, 1988 PCT Pub. No. WO88/09113 PCT Pub. Date Dec. 1, 1988.A power operated hand guided device is designed to scarify, edge, and aerate lawns and grass. It comprises tools in the form of blades (26) which rotate in a vertical plane about the common axis of a pair of tool-holder shafts. Each tool holder shaft (21) is rotatably connected to a bearing (12) supported on a vertically adjustable beam (23) having wheels (24 and 25) or rollers at each end. A brake (37) which retards the forward movement by friction with the ground is connected to the motor assembly by a rod (38).
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