US 11,653,586 B2
Agricultural ground opener depth adjustment mechanism
Colin Wemyss, Corowa (AU)
Assigned to BPR Engineering Pty Ltd, Corowa (AU)
Filed by BPR Engineering Pty Ltd, Corowa (AU)
Filed on Sep. 2, 2020, as Appl. No. 17/10,223.
Prior Publication US 2022/0061203 A1, Mar. 3, 2022
Int. Cl. A01B 63/16 (2006.01); A01B 63/00 (2006.01); A01C 5/06 (2006.01)
CPC A01B 63/166 (2013.01) [A01B 63/002 (2013.01); A01C 5/064 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A gauge wheel adjustment assembly for controlling penetration depth of a disk opener, comprising:
a spindle adapted to be rotatably supported in a spindle sleeve, the spindle having a shaft with a first end with a rectangular boss adapted for engagement with a depth adjustment handle of the disk opener and a second end with a tapered spline engagement formation; and
a gauge wheel support arm having a complementary tapered spline formation for engagement with the second end of the spindle,
wherein the rectangular boss has outside dimensions larger than an interior diameter of the spindle sleeve.