Wearing part arrangement for soil-working implement

• US 10,638,652 B2
• Filed: 09/06/2018
• Issued: 05/05/2020
• Est. Priority Date: 05/24/2012
• Status: Active Grant

• Current Assignee: Kverneland Group Operations Norway AS (Kubota Corporation)
• Original Assignee: Kverneland Group Operations Norway AS (Kubota Corporation)
• Inventors: Skjaeveland, Magne
• Primary Examiner(s): Will, Thomas B
• Assistant Examiner(s): Mitchell, Joel F.
• Application Number:
  US16/123,101
• Publication Number:
  US 20190000001A1
• Time in Patent Office: 607 Days
• Field of Search: 172719
• CPC Class Codes: A01B 15/06 Interchangeable or adjustable shares

Abstract

A wearing-part arrangement for a leading edge of a soil-working implement includes a point configured to be releasably attached to the soil-working implement. The point has a pointed front portion and a transverse elevation projecting from an upper face thereof. At least the front portion is mirror-symmetrical around a longitudinal axis of the point and has first and second oblique faces diverging in a direction of a socket on the point and merging with a first side edge surface and a second side edge surface. The first oblique face is bounded by a first cutting edge, and the second oblique face is bounded by a second cutting edge. When the point is attached to the soil-working implement, at least a rear portion of the second oblique face and the second side edge surface adjacent to the second oblique face project beyond a side edge of the soil-working implement.

Claims

1. A wearing-part arrangement for a leading edge of a soil-working implement, the wearing-part arrangement comprising:

a point configured to be releasably attached to the soil-working implement, the point having a pointed front portion; and

a wearing-part holder configured to be releasably attached to a surface of the soil-working implement, the wearing-part holder being configured to receive the point,

wherein at least the front portion is mirror-symmetrical around a longitudinal axis of the point and has a first oblique face and a second oblique face diverging in a direction of a socket on the point and merging with a first side edge surface and a second side edge surface,

wherein the first oblique face is bounded by a first cutting edge, and the second oblique face is bounded by a second cutting edge,

wherein when the point is attached to the soil-working implement, at least a rear portion of the second oblique face and the second side edge surface adjacent to the second oblique face project beyond a soil-working implement side edge,

wherein the point includes a transverse elevation configured to shield the wearing-part holder from wear, the transverse elevation projecting from an upper face of the point,

wherein the wearing-part holder has a curved abutment surface configured to rest against a portion of the surface of the soil-working implement, the curved abutment surface being single-curved around an axis which is parallel to the longitudinal axis of the point, and having a radius that is smaller than a corresponding radius of curvature of the surface of the soil-working implement, and

wherein a longitudinal axis of the first oblique face is parallel to the leading edge or a front portion of the leading edge.

2. The wearing-part arrangement in accordance with claim 1, further comprising a quick-release coupling device, wherein the point is releasably attached to the soil-working implement by the quick-release coupling device.

3. The wearing-part arrangement in accordance with claim 1, wherein the wearing-part holder includes an attachment pin that complements and mates with the socket of the point.

4. The wearing-part arrangement in accordance with claim 3, wherein the point is releasably attached to the soil-working implement by a quick-release coupling device comprised of the attachment pin of the wearing-part holder and the socket of the point.

5. The wearing-part arrangement in accordance with claim 1, wherein a thickness of the point gradually decreases towards the first cutting edge and the second cutting edge.