Patent US3662847A successfully refreshed from Google Patents.
US3662847A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Track roller shaft mounting
Assignee: International Motors LLC
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Filing: 1970-01-12
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Granted: 1972-05-16
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Expires: 1990-01-12
Abstract
Abstract Seal bracket and spacer construction for mounting track rollers of a crawler tractor. Brackets are provided which not only carry seals between track rollers and their shafts as well as mount the shafts on side members, but also aid in maintaining the side members in spaced relation to one another. To this end, upwardly projecting extensions on the brackets and a longitudinal plate are provided. The longitudinal plate is the back up member against the top ends of the bracket extensions and is welded at intervals to the side members, to which members the brackets are secured, and which members are secured to the tractor body by gage bars.
Inventors
- 👤 Fredrick A Skanes
- 👤 Ludwig E Aker
- 👤 Ronald G Kraemer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:53
CPC Classifications
B; B62; B62D; B62D55/00; B62D55/08; B62D55/14; B62D55/15
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
237 words
In a tractor driven by an endless chain assembly formed of connected track segments, the combination comprising a set of track rollers distributed along the interior of the chain in engagement with the lower side thereof, a pair of laterally spaced side members extending along the chain, a set of shafts, one to a roller, journalling the rollers and extending transversely of and between the side members, two sets of brackets, the brackets of one set being distributed along one side member at the surface thereof facing the other side member, the brackets of the other set being distributed along the other side member at the surface thereof facing the other side member, each shaft having one end mounted in a bracket of the said one set and the other end mounted in a bracket of the said other set, the brackets having vertical extensions, one to a bracket, each extension projecting independently of the adjacent side member upwards of the region of the particulaR bracket mounting the associated shaft, a longitudinal plate abutting the upper ends of the vertical extensions of the brackets and having its side edges joined to upper regions of the side members, seals acting between the ends of each roller and the associated brackets, and means securing the said one side member and the other side member, respectively, to the brackets of said one set and the brackets of said other set.
Claim 2
Dependent Claim
237 words
In a tractor driven by an endless chain assembly formed of connected track segments, the combination comprising a set of track rollers distributed along the interior of the chain in engagement with the lower side thereof, a pair of laterally spaced side members extending along the chain, a set of shafts, one to a roller, journalling the rollers and extending transversely of and between the side members, two sets of brackets, the brackets of one set being distributed along one side member at the surface thereof facing the other side member, the brackets of the other set being distributed along the other side member at the surface thereof facing the other side member, each shaft having one end mounted in a bracket of the said one set and the other end mounted in a bracket of the said other set, the brackets having vertical extensions, one to a bracket, each extension projecting independently of the adjacent side member upwards of the region of the particulaR bracket mounting the associated shaft, a longitudinal plate abutting the upper ends of the vertical extensions of the brackets and having its side edges joined to upper regions of the side members, seals acting between the ends of each roller and the associated brackets, and means securing the said one side member and the other side member, respectively, to the brackets of said one set and the brackets of said other set.
Claim 3
Dependent Claim
71 words
The combination specified in claim 1, the longitudinal plate being joined to the side members by welding, the vertical extensions on the brackets of the said one set and the brackets of the said other set, respectively, being somewhat spaced from the said one side member and the said other side member, the direct relationship of the longitudinal plate with the vertical extensions involving only abutment and being free of connections.
Claim 4
Dependent Claim
88 words
The combination specified in claim 2, each roller having a pair of circular flanges, one on one end, the other on the other end, each bracket having a circular flange overlapping the circular flange on the adjacent end of the associated roller, the flange on the bracket and the roll being located outward of the seals between the roller and the bracket so as generally to close the space occupied by the seals, each roller being journalled on the associated shaft by a pair of conical thrust bearings.
Claim 5
Dependent Claim
129 words
The combination specified in claim 2, each roller having a pair of shoulders near but spaced from its ends, the shoulders facing its ends, the combination further comprising a pair of annular discs attached to the ends of each roller and extending radially inwards therefrom in overlapping engagement with the shoulders on the associated shaft, each bracket having a circular flange overlapping the outer edge of the annular disc on the adjacent end of the associated roller so as generally to close the space occupied by the seals, each shaft having at a mid region a wide shallow annular groove and lubricant passages leading to the groove, each shaft having direct bearing contact with the associated roller at regions of the shaft beyond the ends of the shallow groove.
Claim 6
Dependent Claim
55 words
The combination specified in claim 2 and further comprising a plurality of pairs of screws joining the brackets to the side members, each pair of screws being applied to a single bracket in diametrally opposed locations in relation to the associated shaft, a line between the screws of each pair being inclined to the horizontal.
Claim 7
Dependent Claim
174 words
In a tractor driven by a closed loop formed of connected track segments and located at the side of the tractor body, the combination comprising gage bars extending from the tractor body at regions thereof spaced longitudinally thereof, a pair of laterally spaced side members extending along the tractor body and having flanges at their upper edges, a pair of blocks bridging the side members and secured to the flanges thereof and to the gage bars, a set of track rollers distributed along the interior of the loop of track segments in engagement therewith, shafts journalling the rollers, a plurality of brackets distributed along the inner faces of the side members and mounting the ends of the shafts, seals operating between the rollers and the brackets, means securing the brackets to the side members, the brackets having vertical extensions projecting upwards beyond the seals and the securing means, and a longitudinal plate resting on the upper ends of the vertical extensions on the brackets and being welded to the side members adjacent the flanges.
Claim 8
Dependent Claim
174 words
In a tractor driven by a closed loop formed of connected track segments and located at the side of the tractor body, the combination comprising gage bars extending from the tractor body at regions thereof spaced longitudinally thereof, a pair of laterally spaced side members extending along the tractor body and having flanges at their upper edges, a pair of blocks bridging the side members and secured to the flanges thereof and to the gage bars, a set of track rollers distributed along the interior of the loop of track segments in engagement therewith, shafts journalling the rollers, a plurality of brackets distributed along the inner faces of the side members and mounting the ends of the shafts, seals operating between the rollers and the brackets, means securing the brackets to the side members, the brackets having vertical extensions projecting upwards beyond the seals and the securing means, and a longitudinal plate resting on the upper ends of the vertical extensions on the brackets and being welded to the side members adjacent the flanges.
Claim 9
Dependent Claim
199 words
In a crawler vehicle having a track frame, and an assembly therein of a relatively rotatable track roller and roller shaft, said shaft being connected to the side members of the frame so as to bridge therebetween and be supported in part thereby, there being lateral portions of the roller confronting said frame side members and having the shaft ends in and adjacent the roller, the combination with the frame, shaft, and roller, of means to fix the shaft in the frame in proper sPacing thereto, comprising: a pair of seal brackets disposed one at each side of the frame adjacent a roller portion and receiving the adjacent end of the shaft, each bracket having in the plane thereof a load reaction portion to be supported; two seals, each between a roller portion and its adjacent bracket; a longitudinal top plate included in the frame so as to go from one side thereof to the other and disposed horizontally; and two spacer struts intermediate and generally parallel to the frame side members, each strut secured to a supported portion aforesaid in the plane of a bracket, and directly engaged and supported by the longitudinal top plate of the frame.
Claim 10
Dependent Claim
199 words
In a crawler vehicle having a track frame, and an assembly therein of a relatively rotatable track roller and roller shaft, said shaft being connected to the side members of the frame so as to bridge therebetween and be supported in part thereby, there being lateral portions of the roller confronting said frame side members and having the shaft ends in and adjacent the roller, the combination with the frame, shaft, and roller, of means to fix the shaft in the frame in proper sPacing thereto, comprising: a pair of seal brackets disposed one at each side of the frame adjacent a roller portion and receiving the adjacent end of the shaft, each bracket having in the plane thereof a load reaction portion to be supported; two seals, each between a roller portion and its adjacent bracket; a longitudinal top plate included in the frame so as to go from one side thereof to the other and disposed horizontally; and two spacer struts intermediate and generally parallel to the frame side members, each strut secured to a supported portion aforesaid in the plane of a bracket, and directly engaged and supported by the longitudinal top plate of the frame.
Claim 11
Dependent Claim
29 words
The invention of claim 7, characterized by sets of bolts (19) each nonrotatably connecting a supported portion of a bracket to the side of the frame to prevent rotation.
Claim 12
Dependent Claim
27 words
The invention of claim 8, characterized by non-rotatable means (17) connecting a supporting portion of each bracket to the adjacent end of the shaft to prevent rotation.
Claim 13
Dependent Claim
27 words
The invention of claim 7, characterized by two bearings (14) each connecting a roller portion for antifriction relative rotation to and upon the adjacent nonrotatable shaft end.
Claim 14
Dependent Claim
34 words
The invention of claim 10, characterized by two side bolts each connecting a shaft end to the side member of the frame at that side and pre-loading and supporting the assembly on the frame.
Claim 15
Dependent Claim
150 words
In a crawler vehicle having a track frame, and an assembly therein of a relatively rotatable track roller and roller shaft, there being lateral portions of the roller confronting the sides of the frame and having the shaft ends therein and thereadjacent, the combination with the frame, shaft, and roller, of means to fix the shaft in the frame comprising: a pair of seal brackets disposed one at each side of the frame adjacent a roller portion and receiving the adjacent end of the shaft, each bracket having in the plane thereof a load reaction portion to be supported; two seals, each between a roller portion and its adjacent bracket; a longitudinal top plate included in the frame and disposed horizontally; and two spacer struts each integral with a supported portion in the plane of the bracket, and directly engaged and supported by the longitudinal top plate of the frame.
Claim 16
Dependent Claim
150 words
In a crawler vehicle having a track frame, and an assembly therein of a relatively rotatable track roller and roller shaft, there being lateral portions of the roller confronting the sides of the frame and having the shaft ends therein and thereadjacent, the combination with the frame, shaft, and roller, of means to fix the shaft in the frame comprising: a pair of seal brackets disposed one at each side of the frame adjacent a roller portion and receiving the adjacent end of the shaft, each bracket having in the plane thereof a load reaction portion to be supported; two seals, each between a roller portion and its adjacent bracket; a longitudinal top plate included in the frame and disposed horizontally; and two spacer struts each integral with a supported portion in the plane of the bracket, and directly engaged and supported by the longitudinal top plate of the frame.
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) | 1975-05-16 | 1975-11-15 | 1976-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-16 | 1979-11-15 | 1980-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-16 | 1983-11-15 | 1984-05-16 | $7700.00 | Window Closed / Lapsed |