Closing wheels adjustment mechanism

• US 5,676,073 A
• Filed: 04/22/1996
• Issued: 10/14/1997
• Est. Priority Date: 04/22/1996
• Status: Expired due to Term

• Current Assignee: Deere & Company
• Original Assignee: Deere & Company
• Inventors: Hubbard, Loyd Thomas Jr., Bergland, Norman Robert
• Primary Examiner(s): Melius, Terry Lee
• Assistant Examiner(s): BATSON, VICTOR D
• Application Number:
  US08/636,046
• Time in Patent Office: 540 Days
• Field of Search: 111/190, 111/191, 111/194, 111/195, 111/196, 172/701, 172/538, 403/12, 403/13, 403/14, 403/112, 403/113, 403/116
• US Class Current: 111/196
• CPC Class Codes: A01C 5/06 Machines for making or covering drills or furrows for sowing or planting

Abstract

The present invention is an adjustment mechanism to move the seed firming wheels into its correct side-to-side position. The seed firming wheels are rotatably mounted to a bracket which in turn is mounted to a wheel support member of the planter unit frame. The bracket is provided with two radiused bushings which cooperate with radiused surfaces in the side walls of the wheel support member. The side walls and the wheel support member are provided with fore/aft extending slots through which adjustment bolts pass through the bracket and sidewalls of the wheel support member for clamping the bracket to the wheel support member.

Claims

1. A planter for planting seed in a seedbed, the planter comprising:

a frame, the frame having a wheel support member, the wheel support member is provided with left and right sidewalls that are provided with left and right radiused surfaces, respectively;

a furrow opener being mounted to the frame for opening a seed planting furrow in the seedbed;

a seed meter being mounted to the frame for metering seed into a seed tube, the seed tube directing the seed into the seed planting furrow formed by the furrow opener;

a closing wheel assembly for closing the seed planting furrow after seeds have been deposited in the seed planting furrow by the seed tube, the closing wheel assembly being rotatively mounted to a bracket, the closing wheel assembly having a side-to-side position relative to the seed planting furrow, the bracket being adjustably coupled to the frame so that the bracket can be pivoted about a vertical axis to adjust the side-to-side position of the closing wheel assembly relative to the seed planting furrow.

2. A planter as defined by claim 1 wherein the bracket is provided with two radiused bushings that cooperate with the left and right radiused surfaces for adjusting the side-to-side position of the closing wheel assembly relative to the seed planting furrow.

3. A planter as defined by claim 2 wherein two adjustment bolts pass though the two radiused bushings and the left and right sidewalls of the wheel support member for clamping the bracket in place.

4. A planter as defined by claim 3 wherein the left and right sidewalls of the wheel support member being provided with left and right fore/aft extending slots through which the two adjustment bolts pass.

5. A planter as defined by claim 4 wherein each of the two radiused bushings are provided with two semi-circular projections that ride in the left and right fore/aft extending slots.

6. A planter as defined by claim 5 wherein the closing wheel assembly comprises a pair of seed firming wheels for closing and firming soil around the seed planting furrow.

7. An assembly for adjusting the side-to-side position of a closing wheel assembly of a planter having a wheel support member, the assembly comprising:

a bracket which is mounted to the wheel support member, the bracket is provided with left and right radiused bushings;

the closing wheel assembly capable of being rotatably mounted to the bracket;

whereby the wheel support member is provided with left and right sidewalls having left and right radiused surfaces respectively, the left and right radiused bushings cooperating with the radiused surfaces so that the bracket can be pivoted about a vertical axis thereby adjusting the side-to-side position of the closing wheel assembly.

8. An assembly as defined by claim 7 wherein the left and right sidewalls of the wheel support member is provided with left and right fore/aft extending slots.

9. An assembly as defined by claim 8 wherein adjustment bolts pass through the radiused bushings and the left and right fore/aft extending slots for clamping the bracket to the wheel support member.

10. An assembly as defined by claim 8 wherein each of the two radiused bushings are provided with two semi-circular projections that ride in the left and right fore/aft extending slots.

11. An assembly as defined by claim 10 wherein the closing wheel assembly comprises a pair of seed firming wheels for closing and firming soil around the seed planting furrow.