| 摘要 |
The present invention concerns a blade for a lawn mower, which comprises an elongate plate-shaped central unit 10 intended to be secured in the vertical drive shaft of a lawn mower, the end sections 13 of the central unit being able to turn about a longitudinal central axle of the unit, and each end section having a blade-shaped cutting member 14 whose one half 15 is twisted in relation to the other half 16. Cutting members and unit are provided with members 20, 19, respectively, by means of which the parts can be fixed to each other so that the half 15 of the cutting member projects radially beyond the end section 13 of the unit 10 and forms a primary cutting edge 17. The cutting member 14 is arranged, in relation to the end section 13 of the unit 10, in such a way that its other half 16 projects in front of the unit, as seen in the direction of rotation of the blade, in order thereby to form a secondary cutting edge 21. The invention also concerns a cutting member 14 intended to be used together with the blade. <IMAGE> |
