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US 4,877,090 AGranted
Reciprocating implement
AssigneeKeho Alta Industries Ltd.
InventorZan Gullickson
Life of this patent
Estimating the term…
Abstract
An implement has a transversely extending body and a mechanism for supporting the implement and for permitting transverse reciprocation of the body. The mechanism includes a plurality of spaced-apart support members connected to the body. Each of the support members is rigid in a direction which is vertical when the implement is positioned for use and is flexible in a transverse direction. The implement may be a harrow having tines extending downwardly from the body, the body having a plurality of hingedly connected sections so the harrow can be connected to, and folded with, a folding cultivator.
Claims13
A harrow, comprising:
- a body having a front and a plurality of spaced apart tines;
- means for transversely reciprocating the body;
- means for supporting the harrow vertically and for permitting transverse reciprocation of the body, the means for supporting and for permitting transverse reciprocation including a plurality of spaced apart support members connected to the body, each of the support members being rigid in one direction to provide vertical support for the body and being flexible in a second direction, which is perpendicular to said one direction, to accommodate said transverse reciprocation, the support members including leaf springs extending from the front of the body and being spaced apart and parallel, the leaf springs being elongated and relatively broad in said one direction, which is vertical when the harrow is positioned for use, and relatively thin in said second direction which is transverse when the harrow is positioned for use, the leaf springs having front ends which are distal with respect to the body, the harrow further including a clamp at the front end of each of the leaf springs capable of securing the harrow to a cultivator.
A combination comprising:
- a first implement having a front and a back and a body with a plurality of hingedly interconnected sections permitting the first implement to fold about horizontal axes extending from the front to the back of the first implement;
- a second implement having a body spaced-apart from the first implement at the back thereof, the second implement having a body with a plurality of hingedly interconnected sections permitting the second implement to fold about horizontal axes which are parallel to the axes of the first implement;
- and
- means for connecting the second implement to the first implement so, when the implements are positioned for use, downward movement of the second implement relative to the first implement is restricted and movement of the second implement relative to the first implement is permitted in a transverse direction, the means for connecting including a plurality of elongated members which are flexible in said transverse direction and rigid in a direction which is generally vertical when the implements are positioned for use.
1 more element
A harrow, comprising:
- a body having a front and a plurality of spaced apart tines;
- means for transversely reciprocating the body;
- means for supporting the harrow vertically and for permitting transverse reciprocation of the body, the means for supporting and for permitting transverse reciprocation including a plurality of spaced apart support members connected to the body, each of the support members being rigid in one direction to provide vertical support for the body and being flexible in a second direction, which is perpendicular to said one direction, to accommodate said transverse reciprocation, the support members including leaf springs extending from the front of the body and being spaced apart and parallel, the leaf springs being elongated and relatively broad in said one direction, which is vertical when the harrow is positioned for use, and relatively thin in said second direction which is transverse when the harrow is positioned for use, the leaf springs having front ends which are distal with respect to the body, the means for reciprocating including a motor mounted adjacent the front ends of the leaf springs, a crank on the motor, and an arm having a first end pivotally connected to the crank and a second end operatively connected to the body in a pivotal manner.
Dependencies are inferred from the claim text.