Mower blade
OwnerCarl E. Beckinventor
Life of this patent
Estimating the term…
Abstract
An improved blade for a rotary lawn mower includes cutting elements which are removably attached to a base member. The removable elements may be made of a higher quality steel than the base member and may be easily removed for sharpening or merely replaced with a new element. A removable element is held in the base member by means of a wedged slot which cooperates with a wedged part of the shank of the removable cutting element, while a notch in the base member serves to hold the back of the blade.
Claims11
A blade for a rotary mower having a shaft which is rotatable in a fixed direction, the blade comprising:
- (a) a base member
- (b) means for removably mounting the base member on the rotatable shaft, and
- (c) means for removably securing cutting means to said base member so that a cutting edge extends from the base member in the direction of rotation of the rotatable shaft, the securing means comprising (a) a yoke fixed to said base member and forming a slot for receiving a shank of said cutting means and (b) clip means fixed to said base member and forming a notch for receiving a first edge of said cutting means.
A blade for a rotary mower, having a shaft which is rotatable in a predetermined direction, the blade comprising:
- (a) a base member
- (b) means for mounting said base member on said rotatable shaft, and
- (c) means for removably securing cutting means to said base member, the securing means comprising a yoke which is fixed to said base member and forms a slot for receiving a shank of said cutting means, said yoke having first and second facing surfaces for engaging opposed edge of said shank, said second surface having first and second angularly related generally planar portions.
Dependencies are inferred from the claim text.