US3583509A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Endless track attachment for self-propelled vehicle
Assignee: Deere and Co
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Filing: 1969-05-21
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Granted: 1971-06-08
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Expires: 1989-05-21
Abstract
Abstract An endless track attachment for self-propelled vehicles in which the driving sprocket is carried by the track frame through a spherical bearing and is connectable to a hub on a driving axle. An adjustable support means is provided to engage the sprocket and prevent it pivoting about the spherical bearing when removed from the hub. With the sprocket held up by the support means, the attachment can be mounted on an dismounted from a vehicle as a unitary structure.
Inventors
- 👤 Winfried Stachnik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:44
CPC Classifications
A; A01; A01D; A01D69/00; B; B62; B62D; B62D55/00; B62D55/08; B62D55/12
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
161 words
An endless track attachment for a vehicle having a drive axle mounted within a housing and projecting from the end thereof, a hub mounted on the projecting end of the axle, and a mounting bracket carried by the housing, the attachment comprising: a drive sprocket removably secured to the hub and having a stub axle projecting from one side thereof substantially coaxially with the drive axle; a bearing having a spherical outer race positioned over the stub axle; a bearing bracket positioned over the bearing; an elongated frame carrying a plurality of idler rollers positioned beneath the drive sprocket; a pair of frame brackets secured to the frame; one of the frame brackets being removably connected to the mounting bracket and the other being secured to the bearing bracket; a flexible endless track trained over the sprocket and rollers; and means carried by one of the frame brackets and frame to maintain the sprocket in position when removed from the hub.
Claim 2
Dependent Claim
161 words
An endless track attachment for a vehicle having a drive axle mounted within a housing and projecting from the end thereof, a hub mounted on the projecting end of the axle, and a mounting bracket carried by the housing, the attachment comprising: a drive sprocket removably secured to the hub and having a stub axle projecting from one side thereof substantially coaxially with the drive axle; a bearing having a spherical outer race positioned over the stub axle; a bearing bracket positioned over the bearing; an elongated frame carrying a plurality of idler rollers positioned beneath the drive sprocket; a pair of frame brackets secured to the frame; one of the frame brackets being removably connected to the mounting bracket and the other being secured to the bearing bracket; a flexible endless track trained over the sprocket and rollers; and means carried by one of the frame brackets and frame to maintain the sprocket in position when removed from the hub.
Claim 3
Dependent Claim
16 words
The attachment set forth in claim 1 wherein the last-mentioned means is vertically and horizontally adjustAble.
Claim 4
Dependent Claim
32 words
The attachment set forth in claim 2 wherein the means to maintain the sprocket in position when removed from the hub includes a semispherical bearing shell mounted on the other frame bracket.
Claim 5
Dependent Claim
32 words
The attachment set forth in claim 1 wherein the last-mentioned means includes a pair of rollers carried by the frame and adapted to engage an annular shoulder on he the drive sprocket.
Claim 6
Dependent Claim
34 words
The attachment set forth in claim 1 wherein the drive sprocket is provided with an annular shoulder and the last-mentioned means engages the shoulder to support the drive sprocket when removed from the hub.
Claim 7
Dependent Claim
28 words
The attachment set forth in claim 5 wherein the means to maintain the drive sprocket in position includes a semicylindrical bearing shell carried by the other frame bracket.
Claim 8
Dependent Claim
37 words
The attachment set forth in claim 6 wherein the bearing shell is carried by the other frame bracket for horizontal movement toward and away from the drive sprocket and for vertical adjustment into engagement with the shoulder.
Claim 9
Dependent Claim
42 words
The attachment set forth in claim 5 wherein the means to maintain the drive sprocket in position includes a pair of horizontally spaced rollers carried by the frame and adapted to engage the annular shoulder on opposite sides of its bottom center.
Claim 10
Dependent Claim
18 words
The attachment set forth in claim 8 wherein the rollers are mounted on the frame for horizontal movement.
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) | 1974-06-07 | 1974-12-07 | 1975-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-07 | 1978-12-07 | 1979-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-07 | 1982-12-07 | 1983-06-08 | $7700.00 | Window Closed / Lapsed |