US3613815A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tractor and implement assembly
Assignee: Deere and Co
•
Filing: 1969-09-09
•
Granted: 1971-10-19
•
Expires: 1989-09-09
Abstract
Abstract A tractor and driven implement assembly in which the tractor has a vertical crankshaft engine carried by an engine support frame. The support frame is carried on the tractor main frame by resilient mounts which isolate engine vibrations from the main frame. The engine crankshaft extends below the support frame and carries a pair of sheaves which are operatively connected to the tractor transmission and driven implement by endless flexible belts. The upper sheave is fixed to the crankshaft for rotation therewith, and the lower sheave is rotatably mounted on the crankshaft and is axially shiftable into selective engagement with the upper sheave for selective rotation therewith. An actuating lever is connected to a horizontal pivot carried by a bracket depending from the engine support frame and is operatively connected to the lower sheave to vertically shift the same into selective engagement with the upper sheave. A stationary brake member for the lower sheave also depends from the engine support frame and engages the lower sheave when the lower sheave is lowered from engagement with the upper sheave.
Inventors
- 👤 John Gary Meylink
- 👤 Robert James Bishop
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:55
CPC Classifications
B; B62; B62D; B62D49/00; B62D49/06; B62D49/0664
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
114 words
In a tractor-implement assembly, in which the tractor has a main frame, traction means, and an engine having a vertical crankshaft and an engine frame, the improvement residing in the combination of vibration-insulating engine mounts supporting the engine frame on the tractor frame for isolating engine vibrations from the tractor frame; upper and lower pulley members on the crankshaft relatively vertically shiftable thereon to afford separate or unified rotation, means affording relative vertical adjustment of the pulley members including an actuating member carried by the engine frame operatively connected to relatively shift the pulley members; and belt drive means extending between the upper and lower pulleys and the tractor traction means and the implement.
Claim 2
Dependent Claim
114 words
In a tractor-implement assembly, in which the tractor has a main frame, traction means, and an engine having a vertical crankshaft and an engine frame, the improvement residing in the combination of vibration-insulating engine mounts supporting the engine frame on the tractor frame for isolating engine vibrations from the tractor frame; upper and lower pulley members on the crankshaft relatively vertically shiftable thereon to afford separate or unified rotation, means affording relative vertical adjustment of the pulley members including an actuating member carried by the engine frame operatively connected to relatively shift the pulley members; and belt drive means extending between the upper and lower pulleys and the tractor traction means and the implement.
Claim 3
Dependent Claim
49 words
The assembly set forth in claim 1 wherein the means affording relative vertical adjustment of the pulley members includes a horizontal pivot carried by the engine frame, the actuating member including a lever means carried on the pivot, and control means on the tractor for adjusting the lever means.
Claim 4
Dependent Claim
166 words
In a tractor and driven implement assembly in which the tractor includes a main frame carried by traction means and a vertical crankshaft engine mounted on an engine support frame, the improvement residing in the combination of vibration-insulating mounts supporting the engine support frame on the main frame for isolating engine vibrations from the main frame; first rotary drive means coupled to the crankshaft for rotation therewith; second rotary drive means supported on the crankshaft for axial shifting movement into and out of engagement with the first rotary drive means for selective rotation therewith; means affording vertical adjustment of the second drive means including a horizontal pivot carried by a pivot support mounted on the engine frame, lever means carried on the pivot and operatively connected to the second drive means, and control means on the tractor for adjusting the lever means; and first and second flexible drive means operatively interconnecting the first and second rotary drive means with the traction means and the implement respectively
Claim 5
Dependent Claim
166 words
In a tractor and driven implement assembly in which the tractor includes a main frame carried by traction means and a vertical crankshaft engine mounted on an engine support frame, the improvement residing in the combination of vibration-insulating mounts supporting the engine support frame on the main frame for isolating engine vibrations from the main frame; first rotary drive means coupled to the crankshaft for rotation therewith; second rotary drive means supported on the crankshaft for axial shifting movement into and out of engagement with the first rotary drive means for selective rotation therewith; means affording vertical adjustment of the second drive means including a horizontal pivot carried by a pivot support mounted on the engine frame, lever means carried on the pivot and operatively connected to the second drive means, and control means on the tractor for adjusting the lever means; and first and second flexible drive means operatively interconnecting the first and second rotary drive means with the traction means and the implement respectively
Claim 6
Dependent Claim
76 words
The assembly set forth in claim 3 wherein the first and second rotary drive means are provided with cooperating friction surfaces which constitute a clutch means between the first and second rotary drive means, the clutch means being engaged when the second rotary drive means is axially shifted into engagement with the first rotary drive means and disengaged when the second rotary drive means is axially shifted out of engagement with the first rotary drive means.
Claim 7
Dependent Claim
48 words
The assembly set forth in claim 4 further including brake means for the second rotary drive means, the brake means including a rigid bracket suspended from the engine support frame and having a friction surface engageable with the second rotary drive means when the clutch means is disengaged.
Claim 8
Dependent Claim
217 words
A vehicle including a chassis carried by front and rear wheel means, platform means resiliently mounted on the chassis, an internal combustion engine having a vertical crankshaft that projects downwardly from the crankcase of the engine, the engine being rigidly mounted on the platform means with the crankshaft projecting downwardly through an opening provided in the platform means, first sheave means mounted on the crankshaft for rotation therewith, torque transmitting means including an endless belt trained about the first sheave means drivingly interconnecting the first sheave means and rear wheel means, a friction surface on the lower portion of the first sheave means, a second sheave means mounted on the crankshaft below the first sheave means, the second sheave means being mounted on the crankshaft for vertical and rotary movement relative to the crankshaft, a friction surface on the upper portions of the second shEave means, a stub shaft journaled in the second sheave means and projecting downwardly therefrom, bracket means suspended from the platform means adjacent the first and second sheave means, an actuating arm having one end pivotally mounted on the lower end of the bracket means and being pivotally connected intermediate its ends to the stub shaft, and means to raise and lower the actuating arm about its pivotal connection with the bracket means.
Claim 9
Dependent Claim
217 words
A vehicle including a chassis carried by front and rear wheel means, platform means resiliently mounted on the chassis, an internal combustion engine having a vertical crankshaft that projects downwardly from the crankcase of the engine, the engine being rigidly mounted on the platform means with the crankshaft projecting downwardly through an opening provided in the platform means, first sheave means mounted on the crankshaft for rotation therewith, torque transmitting means including an endless belt trained about the first sheave means drivingly interconnecting the first sheave means and rear wheel means, a friction surface on the lower portion of the first sheave means, a second sheave means mounted on the crankshaft below the first sheave means, the second sheave means being mounted on the crankshaft for vertical and rotary movement relative to the crankshaft, a friction surface on the upper portions of the second shEave means, a stub shaft journaled in the second sheave means and projecting downwardly therefrom, bracket means suspended from the platform means adjacent the first and second sheave means, an actuating arm having one end pivotally mounted on the lower end of the bracket means and being pivotally connected intermediate its ends to the stub shaft, and means to raise and lower the actuating arm about its pivotal connection with the bracket means.
Claim 10
Dependent Claim
74 words
The vehicle set forth in claim 6 further including brake means for the second sheave means, the brake means comprising second bracket means suspended from the platform means adjacent the second sheave means, the lower portion of the second bracket means extending generally horizontally beneath the second sheave means and having an upwardly facing friction surface engageable with a downwardly facing surface on the second sheave means when the second sheave means is lowered.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-10-18 | 1975-04-19 | 1975-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-18 | 1979-04-19 | 1979-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-18 | 1983-04-19 | 1983-10-19 | $7700.00 | Window Closed / Lapsed |