Pivot assembly for planter closing wheel frame
First Claim
1. A pivot assembly for attaching a closing wheel frame to a planter frame, comprising:
- a bearing housing welded to an outer surface of the closing wheel frame;
a ball bearing having an outer race and an inner race, the outer race being fit loosely within said bearing housing;
a threaded bolt that extends through a hole in the planter frame and through an opening in the inner race; and
a threaded nut placed on the bolt and operable in conjunction with the bolt to secure the inner race of the bearing to the planter frame while allowing the outer race of the bearing to pivot with the closing wheel frame relative to the planter frame.
1 Assignment
0 Petitions
Accused Products
Abstract
A pivot assembly is provided for attaching a closing wheel frame to a planter. The closing wheel frame has a pair of closing wheels attached at a rear end and a pair of mounting openings formed at a front end. The pivot assembly includes ball bearings having outer races fit loosely within each of the mounting openings of the closing wheel frame. The inner races of the ball bearings are secured to the planter frame using threaded nut and bolt assemblies. The closing wheel frame is pivotal relative to the planter frame during normal operation by relative movement between the inner and outer races of the bearing. Variations of the mounting openings in the closing wheel frame are disclosed, including a tubular part, heavy washer or other annular structure welded to an outside surface of the closing wheel frame, or a bearing housing formed integral with the closing wheel frame.
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Citations
20 Claims
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1. A pivot assembly for attaching a closing wheel frame to a planter frame, comprising:
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a bearing housing welded to an outer surface of the closing wheel frame;
a ball bearing having an outer race and an inner race, the outer race being fit loosely within said bearing housing;
a threaded bolt that extends through a hole in the planter frame and through an opening in the inner race; and
a threaded nut placed on the bolt and operable in conjunction with the bolt to secure the inner race of the bearing to the planter frame while allowing the outer race of the bearing to pivot with the closing wheel frame relative to the planter frame. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A pivot assembly for attaching a closing wheel frame to a planter frame, comprising:
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a closing wheel frame having a closing wheel attached at a rear end and a mounting opening at a front end;
a ball bearing having an outer race and an inner race, the outer race being fit loosely within said mounting opening at the front end of the closing wheel frame;
a threaded bolt that extends through a hole in the planter frame and through an opening in said inner race; and
a threaded nut placed on said bolt and operable in conjunction with said bolt to secure the inner race of the bearing to the planter frame, whereby the closing wheel frame is pivotal relative to the planter frame during normal operation by relative movement between the inner race and outer race of the bearing. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. An agricultural planter, comprising:
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a furrow opener that forms a furrow in the ground;
a seed tube for directing seed into the furrow; and
a closing wheel assembly for closing the furrow after the seed is placed in the furrow, the closing wheel assembly comprising a closing wheel frame having a pair of closing wheels attached at a rear end and a pair of mounting openings provided at a front end, the closing wheel frame being secured to a frame of the planter by a pair of pivot assemblies each comprising;
a ball bearing having an outer race and an inner race, the outer race being fit loosely within a respective one of said mounting openings at the front end of the closing wheel frame;
a threaded bolt that extends through a hole in the planter frame and through an opening in said inner race; and
a threaded nut placed on said bolt and operable in conjunction with said bolt to secure the inner race of the bearing to the planter frame, whereby the closing wheel frame is pivotal relative to the planter frame during normal operation by relative movement between the inner and outer races of the bearing.
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Specification