Drive train suspension system

• US 5,390,752 A
• Filed: 03/31/1993
• Issued: 02/21/1995
• Est. Priority Date: 03/31/1993
• Status: Expired due to Fees

• Current Assignee: Scarab Manufacturing And Leasing, Inc.
• Original Assignee: Scarab Manufacturing And Leasing, Inc.
• Inventors: Urbanczyk, Marvin L.
• Primary Examiner(s): Tyson, Karin L.
• Assistant Examiner(s): BOEHLER, ANNE MARIE M
• Application Number:
  US08/041,319
• Time in Patent Office: 692 Days
• Field of Search: 180/9.1, 180/9.5, 180/41, 180/9.52, 280/840, 280/6.1, 280/6.11, 280/6.12, 280/DIG. 1, 280/43, 280/43.24, 280/781, 280/783, 280/797, 280/800
• US Class Current: 180/9.52
• CPC Class Codes: B62D 55/116 Attitude or position control of chassis by action on suspension, e.g. to compensate for a slope

Abstract

A drive train suspension system for a manure and compost treating vehicle wherein a linkage assembly is connected between the vehicle drive train assembly and the vehicle frame, on each side of the vehicle frame, so that the vehicle frame is articulately connected to a vehicle drive train assembly on each side. Fluid motors are connected between the vehicle frame and each drive train assembly so that the position of the vehicle frame relative to the drive train assembly can be selectively varied to thereby minimize potential damaging stress imparted to the drive train assembly by the lateral movement of the drive train relative to the vehicle frame, and to raise the vehicle frame to a selected elevation above the ground and/or maintain the vehicle frame substantially level. A stabilizing link assembly is connected between each drive train assembly and vehicle frame so that potential damaging stress imparted to the drive train assembly by the forward and rearward shifting of the drive train assembly relative to the vehicle frame is minimized.

Claims

1. A drive train suspension system for a vehicle comprising, a vehicle drive train assembly the vehicle drive train assembly comprising, an open framework positioned on each side of the vehicle, an endless track and associated drive sprockets and idler wheels mounted in said open framework, a vehicle frame, a linkage assembly connected between the vehicle drive train assembly and the vehicle frame, whereby the vehicle frame is articulately connected to the vehicle drive train assembly, fluid motors connected between the vehicle frame and drive train assembly, whereby the position of the vehicle frame relative to the drive train assembly can be varied, to thereby minimize potential damaging stress imparted to the drive train assembly by lateral movement of the drive train relative to the vehicle frame, and a stabilizing link assembly connected between the drive train assembly and vehicle frame, whereby potential damaging stress imparted to the drive train assembly by the forward and rearward shifting of the drive train assembly relative to the vehicle frame is minimized.

2. A drive train suspension according to claim 1, wherein the vehicle frame comprises a plurality of longitudinally extending tubular members, a plurality of transversely extending tubular members and vertically extending tubular members constructed and arranged to form a welded tubular frame work.

3. A drive train suspension according to claim 1, wherein the linkage assembly comprises at least one pair of links positioned in the front portion of the vehicle and at least one pair of links positioned at the rear portion of the vehicle, each link in each pair being pivotally connected at one end to each other to form an elbow joint, the opposite ends of each link in each pair being respectively pivotally connected to the drive train assembly and the vehicle frame.

4. A drive train suspension according to claim 3, wherein the elbow joint at the rear portion of the vehicle extends in a direction toward the front of the vehicle, and the elbow joint at the front portion of the vehicle extends in a direction toward the rear of the vehicle.

5. A drive train suspension system according to claim 1, wherein the stabilizing link assembly comprises an arm extending longitudinally on the upper edge portion of the framework, an arm member, one end of the longitudinally extending arm being pivotally connected to the upper edge portion of the open framework, the opposite end of said longitudinally extending arm being pivotally connected to said arm member, and the opposite end of said arm member being fixedly connected to the vehicle frame.

6. A drive train suspension system according to claim 5, wherein the linkage assembly comprises at least one pair of links positioned in the front portion of the vehicle and at least one pair of links positioned at the rear portion of the vehicle, each link in each pair being pivotally connected at one end to each other to form an elbow joint, the opposite ends of each link in each pair being respectively pivotally connected to the drive train assembly and the vehicle frame, and said elbow joint at the rear portion of the vehicle positioned above the pivot connection of said longitudinally extending arm to said arm member.

7. A drive train suspension system according to claim 6, in which the pivot connection of such longitudinally extending arm to the upper edge portion of the open framework is positioned below the pivot connections of the pair of links in the front portion of the vehicle to the drive train and the vehicle frame.

8. A drive train suspension system as set forth in claim 5, in which said arm member is an inclined arm member.

9. A drive train suspension system according to claim 1, wherein the vehicle is a manure and compost treating vehicle.

10. A drive train suspension system for a vehicle comprising, a vehicle drive train assembly, the vehicle drive train assembly comprising, an open framework positioned on each side of the vehicle, and tandem drive wheels mounted in said framework, a vehicle frame, a linkage assembly connected between the vehicle drive train assembly and the vehicle frame, whereby the vehicle frame is articulately connected to the vehicle drive train assembly, fluid motors connected between the vehicle frame and drive train assembly, whereby the position of the vehicle frame relative to the drive train assembly can be varied, to thereby minimize potential damaging stress imparted to the drive train assembly by lateral movement of the drive train relative to the vehicle frame, and a stabilizing link assembly connected between the drive train assembly and vehicle frame, whereby potential damaging stress imparted to the drive train assembly by the forward and rearward shifting of the drive train assembly relative to the vehicle frame is minimized.

11. A drive train suspension system according to claim 10, wherein the stabilizing link assembly comprises an arm extending longitudinally on the upper edge portion of the framework, an arm member, one end of the longitudinally extending arm being pivotally connected to the upper edge portion of the open framework, the opposite end of said longitudinally extending arm being pivotally connected to said arm member, and the opposite end of said arm member being fixedly connected to the vehicle frame.

12. A drive train suspension system according to claim 11, wherein the linkage assembly comprises at least one pair of links positioned in the front portion of the vehicle and at least one pair of links positioned at the rear portion of the vehicle, each link in each pair being pivotally connected at one end to each other to form an elbow joint, the opposite ends of each link in each pair being respectively pivotally connected to the drive train assembly and the vehicle frame, and said elbow joint at the rear portion of the vehicle positioned above the pivot connection of said longitudinally extending arm to said arm member.

13. A drive train suspension system according to claim 12, in which the pivot connection of such longitudinally extending arm to the upper edge portion of the open framework is positioned below the pivot connections of the pair of links in the front portion of the vehicle to the drive train and the vehicle frame.

14. A drive train suspension system as set forth in claim 11, in which said arm member is an inclined arm member.

15. A drive train suspension according to claim 10, wherein the vehicle frame comprises a plurality of longitudinally extending tubular members, a plurality of transversely extending tubular members and vertically extending tubular members constructed and arranged to form a welded tubular frame work.

16. A drive train suspension according to claim 10, wherein the linkage assembly comprises at least one pair of links positioned in the front portion of the vehicle and at least one pair of links positioned at the rear portion of the vehicle, each link in each pair being pivotally connected at one end to each other to form an elbow joint, the opposite ends of each link in each pair being respectively pivotally connected to the drive train assembly and the vehicle frame.

17. A drive train suspension according to claim 16, wherein the elbow joint at the rear portion of the vehicle extends in a direction toward the front of the vehicle, and the elbow joint at the front portion of the vehicle extends in a direction toward the rear of the vehicle.

18. A drive train suspension system according to claim 10, wherein the vehicle is a manure and compost treating vehicle.

21. A drive train suspension system according to claim 10, in which the pivot connection of said longitudinally extending arm to said arm member is positioned intermediate said elbow joint at the rear portion of the vehicle and said pivotal connection of said link of said elbow joint at the rear portion to said drive train assembly.

19. A drive train suspension system for a vehicle comprising, a vehicle drive train assembly, said vehicle drive train assembly including an open framework positioned on each side of the vehicle and each having an upper edge portion, traction means mounted in said framework, a vehicle frame, a linkage assembly connected between the vehicle drive train assembly and the vehicle frame, said linkage assembly comprising at least one pair of links positioned in the front portion of the vehicle and at least one pair of links positioned at the rear portion of the vehicle, each link in each pair being pivotally connected at one end to each other to form an elbow joint, the elbow joint at the rear portion of the vehicle extending in a direction toward the front of the vehicle, and the elbow joint at the front portion of the vehicle extending in a direction toward the rear of the vehicle, the opposite ends of each link in each pair being respectively pivotally connected to the drive train assembly and the vehicle frame, whereby the vehicle frame is articulately connected to the vehicle drive train assembly, fluid motors connected between the vehicle frame and drive train assembly, whereby the position of the vehicle frame relative to the drive train assembly can be varied, to thereby minimize potential damaging stress imparted to the drive train assembly by lateral movement of the drive train relative to the vehicle frame, and a stabilizing link assembly connected between the drive train assembly and vehicle frame, said stabilizing link assembly comprising an arm extending longitudinally on the upper edge portion of the framework, an arm member, one end of the longitudinally extending arm being pivotally connected to the upper edge portion of the open framework, the opposite end of said longitudinally extending arm being pivotally connected to said arm member, and the opposite end of said arm member being fixedly connected to the vehicle frame, whereby potential damaging stress imparted to the drive train assembly by the forward and rearward shifting of the drive train assembly relative to the vehicle frame is minimized.

20. A drive train suspension system according to claim 19, in which the pivot connection of said longitudinally extending arm to said arm member is positioned below said elbow joint at the rear portion of the vehicle.

22. A drive train suspension system according to claim 19, in which the pivot connection of longitudinally extending arm to the upper edge portion of the open framework is positioned below the pivot connections of the pair of links in the front portion of the vehicle to the drive train and the vehicle frame.

23. A drive train suspension system according to claim 19, wherein the vehicle is manure and compost treating machine.

24. A drive train suspension system for a vehicle comprising, a vehicle drive train assembly, the vehicle drive train assembly comprising, an open framework positioned on each side of the vehicle, and traction means and associated drive means for said traction means mounted in said open framework, a vehicle frame, a linkage assembly connected between the vehicle drive train assembly and the vehicle frame, whereby the vehicle frame is articulately connected to the vehicle drive train assembly, fluid motors connected between the vehicle frame and drive train assembly, whereby the position of the vehicle frame relative to the drive train assembly can be varied, to thereby minimize potential damaging stress imparted to the drive train assembly be by lateral movement of the drive train relative to the vehicle frame, and a stabilizing link assembly connected between the drive train assembly and vehicle frame, whereby potential damaging stress imparted to the drive train assembly by the forward and rearward shifting of the drive train assembly relative to the vehicle frame is minimized.