| 摘要 |
Drive disk (1) intended for a machine for the repair and/or maintenance of floors, of the type including a motor capable of rotationally driving at least one rotary tool (2) through the use of a drive shaft (3), said disk being produced from a material which is supple perpendicular to its plane but which is rigid in its plane. According to the invention, the drive disk is noteworthy in that the cavity (10) formed between said rigid circular plate (4) and said diaphragm (5) is leaktight and contains a fluid, especially a liquid, for example water, keeping said diaphragm (5) taut.
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