US 7,124,836 B2 · Knock-on sweep structure

Abstract

Sweep retaining structure includes a retainer having a contact end biased towards the sweep. The sweep includes two or more spaced end-receiving areas to accommodate changes in the mounted sweep position. In one embodiment, the retainer is a wire made of spring steel having a contact end biased against the underside of the sweep. In one embodiment, the underside of the sweep includes a series of stepped portions. As the sweep is forced on the adapter on the shank, the contact end springs into retaining position on the stepped portion that aligns with the spring end when the sweep is in the mounted position. The sweep can be attached loosely by hand in an initial position with operating forces moving the sweep to a wedge locked position.

Claims13

Dependent claims

Retaining structure for a knock-on sweep assembly for a tillage implement sweep having a forward end and a sweep mounting portion located rearwardly of the forward end, the retaining structure including:

a wedge support adapted for mating with the sweep mounting portion and providing a tight but releasable wedged fit position, the wedge fit position dependent on tolerances between the wedge support in the sweep mounting position;
a retainer supported by the wedge support and biased into a locking position relative to the sweep to prevent movement of the sweep from the wedge fit position;
wherein the sweep mounting portion includes spaced retainer-receiving locations defining a plurality of retainer contact areas to engage the retainer at different wedge fit positions;
and
wherein the retainer engages one of the retainer contact areas, the contact area engaged dependent upon the wedge fit position.

2 more elements

Dependencies are inferred from the claim text.

Knock-on sweep structure

Life of this patent

Knock-on sweep structure

Life of this patent

Abstract

Claims13