Blade assembly with replaceable cutting edge
OwnerCyril W. Carsoninventor
Life of this patent
Estimating the term…
Abstract
A blade assembly for equipment such as a bulldozer, snow plow or the like has a moldboard and a replaceable blade. A plurality of rearwardly projecting lugs are provided adjacent the top edge of the blade and a corresponding plurality of sockets are provided adjacent the lower edge of the moldboard. The upper and lower surfaces of the lugs are horizontal while the side surfaces diverge rearwardly. The moldboard sockets are correspondingly configured but of greater width than the lugs. A locking bar having forwardly projecting locking lugs is detachably mounted on the rear face of the moldboard. The locking lugs are of such configuration as to substantially completely fill the portion of the socket remaining open when the blade lug has been inserted and shifted laterally in the moldboard socket.
Claims5
A blade assembly, comprising:
- a moldboard having a rearwardly offset lower end;
- a detachable blade having an upper portion engaging said offset lower end of said moldboard;
- a plurality of lugs projecting rearwardly from the back face of said upper portion of said blade, each lug having parallel upper and lower surfaces and rearwardly diverging side surfaces;
- said lower end of said moldboard having an equal plurality of openings for receiving said lugs, each opening having parallel upper and lower walls and side walls diverging rearwardly at the same angles as the side surfaces of said lugs, the separation between said upper and lower walls being slightly greater than the height of said lug, the separation of said side walls at the forward face of said lower end being slightly greater than the width of said lug at the rear face thereof;
- an equal plurality of locking elements, each element having parallel top and bottom faces and parallel side faces which are parallel to one of the side surfaces of said lugs, the height of said element being nearly equal to the height of said opening and the width of said element being nearly equal to the difference between the maximum width of said opening and the maximum width of said lug;
- and
- means to retain said locking element in said socket.
A moldboard and detachable blade assembly, comprising:
- a blade having a plurality of lugs projecting from the rear face thereof adjacent the upper end thereof, each of said lugs having parallel upper and lower surfaces extending perpendicular to the rear face of said blade and rearwardly diverging side surfaces;
- a moldboard having a plurality of sockets extending therethrough adjacent the lower edge thereof, each of said sockets having parallel upper and lower walls extending perpendicular to the front face of said moldboard and rearwardly diverging side walls, said side walls diverging at the same angles as do the side surfaces of the lugs, the openings in said front face of said moldboard defined by the intersection of the walls of each socket therewith being of the same height and configuration as the corresponding rear face of each lug and dimensioned longer in length so as to allow insertion of said lugs into said sockets;
- and
- means for locking said lugs in said sockets, said means including a plurality of locking lugs, each locking lug being of such dimensions as to substantially fill the portion of said socket left open when said firstmentioned lug is located therein with one side surface abutting a side wall of said socket.
Dependencies are inferred from the claim text.