Wear part device for a work tool

• US 8,528,238 B2
• Filed: 12/15/2010
• Issued: 09/10/2013
• Est. Priority Date: 12/17/2009
• Status: Active Grant

• Current Assignee: Kverneland Group Operations Norway AS (Kubota Corporation)
• Original Assignee: Kverneland Group Operations Norway AS (Kubota Corporation)
• Inventors: Skjveland, Magne
• Primary Examiner(s): PEZZUTO, ROBERT ERIC
• Application Number:
  US13/516,374
• Publication Number:
  US 20120279096A1
• Time in Patent Office: 1,000 Days
• Field of Search: 374/46, 37452-458, 172/749, 172/750, 172/757, 172/677, 172/683, 172/698, 172/699, 172/701.2, 172/701.3, 172/713, 172/719, 172/720, 172/721, 172/753, 172/772, 172/772.5
• US Class Current: 37/455
• CPC Class Codes: E02F 9/2825 using adapters
• CPC Class Codes: E02F 9/2858 characterised by shape

Abstract

A replaceable wear part device for attachment on a forward edge of a work tool includes at least a portion of the forward edge of the work tool that has an attachment section having spaced engagement surfaces. The wear part device has a complimentary attachment section provided with spaced engagement surfaces in which the respective engagement surfaces may mutually and slidably engage to hold the wear part device attached to the work tool. The wear part device has an elongated eminence arranged crosswise to the intended operating direction of the work tool, and immediately forward of the attachment section of the wear part. The eminence extends laterally across a first sliding surface by a distance at least equal to a distance between the mutually engaged engagement surfaces.

Claims

1. A replaceable wear part device for attachment on a forward edge of a work tool, wherein at least a portion of the forward edge of the work tool comprises an attachment section having spaced engagement surfaces, the wear part device comprising:

a rear edge having an attachment section with spaced engagement surfaces,

wherein the attachment section of the wear part device is complementary to the attachment section of the work tool,

wherein the respective engagement surfaces are configured to be mutually and slidably engageable so as to hold the wear part device when the wear part device is attached to the work tool,

wherein the wear part device further comprises an elongated eminence arranged crosswise to an intended operating direction of the work tool and immediately forward of the attachment section of the wear part,

wherein the eminence extends laterally across a first sliding surface by a distance at least equal to a distance between the mutually engaged engagement surfaces,

wherein the eminence is configured such that material dislodged by the work tool is deflected by the eminence away from the attachment section of the work tool.

2. The device according to claim 1, wherein the eminence is provided with a front surface tilting in the operating direction of movement of the work tool from a top of the eminence toward the first sliding surface.

3. The device according to claim 1, wherein the eminence exhibits a height from the first sliding surface to a top of the eminence, and wherein the height is at least 10 mm.

4. The device according to claim 1, wherein the eminence exhibits a height from the first sliding surface to a top of the eminence, and wherein the height is at least 12 mm.

5. The device according to claim 1, wherein the eminence is arranged adjacent to the rear edge of the wear part device, and wherein the rear edge forms an abutment for the attachment section of the work tool.