Patent US1578326A successfully refreshed from Google Patents.
US4406501A
Expired / Lapsed
US
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Recoil system with guided slide assembly for track-type vehicles
Assignee: Caterpillar Inc
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Filing: 1982-01-29
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Granted: 1983-09-27
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Expires: 2002-01-29
Abstract
Abstract A track-type vehicle (10) includes a track roller frame (13), a track idler (18) mounted forwardly on the track roller frame (13), and a recoil system (19) interconnected between the track roller frame (13) and the track idler (18). Conventional recoil systems, such as those employing one or more return springs therein, are sometimes subjected to adverse impact loads which could unduly subject undercarriage components to high stresses. This invention is directed to a slider assembly (29) slidably mounted for fore and aft movements on the track roller frame (13) and having the track idler (18) rotatably mounted thereon. Linear movement of the slider assembly (29) on the track roller frame (13) is guided by a pair of guides (30) laterally spaced on either side of the track idler (18).
Inventors
- 👤 Jon C. Christensen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:34
CPC Classifications
B; B62; B62D; B62D55/00; B62D55/08; B62D55/30; B62D55/305
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
161 words
In a track-type vehicle (10) having a track roller frame (13), a track idler (18) mounted forwardly on said track roller frame (13), and a recoil system (19) interconnected between said track roller frame (13) and said track idler (18), said recoil system (19) including a slider assembly (29) having a pair of elongated slide means (30) for slidably mounting said slider assembly (29) for fore and aft movements on said track roller frame (13), said slide means (30) being laterally spaced on either side of said track idler (18), the improvement comprising: each of said slide means (30) including an elongated flange (35) and an elongated wear insert (34) mounted and providing bearing surfaces between said track roller frame (13) and said flange (35) and wherein said slider assembly (29) further includes a pair of brackets (41), disposed on either side and rotatably mounting said track idler (18) therebetween, each extending downward from a respective one of said flanges (35).
Claim 2
Dependent Claim
161 words
In a track-type vehicle (10) having a track roller frame (13), a track idler (18) mounted forwardly on said track roller frame (13), and a recoil system (19) interconnected between said track roller frame (13) and said track idler (18), said recoil system (19) including a slider assembly (29) having a pair of elongated slide means (30) for slidably mounting said slider assembly (29) for fore and aft movements on said track roller frame (13), said slide means (30) being laterally spaced on either side of said track idler (18), the improvement comprising: each of said slide means (30) including an elongated flange (35) and an elongated wear insert (34) mounted and providing bearing surfaces between said track roller frame (13) and said flange (35) and wherein said slider assembly (29) further includes a pair of brackets (41), disposed on either side and rotatably mounting said track idler (18) therebetween, each extending downward from a respective one of said flanges (35).
Claim 3
Dependent Claim
26 words
The vehicle (10) of claim 1 wherein said wear insert (34) is slidably and removably mounted between said track roller frame (13) and said flange (35).
Claim 4
Dependent Claim
27 words
The vehicle (10) of claim 2 further including retaining means (36) for holding said wear insert (34) in a fixed position on said track roller frame (13).
Claim 5
Dependent Claim
38 words
The vehicle (10) of claim 3 wherein said retaining means (36) includes plates (37,38) releasably attached to opposite ends of said track roller frame (13) to at least partially overlap the opposite ends of said wear insert (34).
Claim 6
Dependent Claim
56 words
The vehicle (10) of claim 1 further including an elongated slot (31) formed on said track roller frame (13) and wherein said wear insert (34) is channel-shaped and is mounted in said slot (31), said flange (35) being slidably mounted in said wear insert (34) and positioned to face laterally away from the other flange (35).
Claim 7
Dependent Claim
33 words
The vehicle (10) of claim 1 wherein said flanges (35) are formed on said slider assembly (29) to extend laterally away from each other and said slots (31) face inwardly towards each other.
Claim 8
Dependent Claim
131 words
A track-type vehicle (10) comprising a chassis (11), an undercarriage (12) including a pair of track roller frames (13) mounted on opposite sides of said chassis (11), an endless track assembly (15) mounted on each of said track roller frames (13), a track idler (18) having said track assembly (15) entrained thereover, and a recoil system (19) including a slider assembly (29) slidably mounted for fore and aft movements on said track roller frame (13) and having a pair of downwardly extending brackets (41) rotatably mounting said track idler (18) therebetween, and elongated and channel-shaped wear inserts (34) facing inwardly towards each other and slidably mounting said slider assembly (29) on said track roller frame (13) vertically above the location whereat said brackets (41) rotatably mount said track roller (18) thereon.
Claim 9
Dependent Claim
131 words
A track-type vehicle (10) comprising a chassis (11), an undercarriage (12) including a pair of track roller frames (13) mounted on opposite sides of said chassis (11), an endless track assembly (15) mounted on each of said track roller frames (13), a track idler (18) having said track assembly (15) entrained thereover, and a recoil system (19) including a slider assembly (29) slidably mounted for fore and aft movements on said track roller frame (13) and having a pair of downwardly extending brackets (41) rotatably mounting said track idler (18) therebetween, and elongated and channel-shaped wear inserts (34) facing inwardly towards each other and slidably mounting said slider assembly (29) on said track roller frame (13) vertically above the location whereat said brackets (41) rotatably mount said track roller (18) thereon.
Claim 10
Dependent Claim
32 words
The vehicle (10) of claim 7 further including a pair of elongated flanges (35) laterally spaced on either side of said track idler (18) and slidably mounted in said wear inserts (34).
Claim 11
Dependent Claim
26 words
The vehicle (10) of claim 8 wherein said wear inserts (34) are slidably and removably mounted between said track roller frame (13) and said flanges (35).
Claim 12
Dependent Claim
27 words
The vehicle (10) of claim 9 further including retaining means (36) for holding said wear inserts (34) in a fixed position on said track roller frame (13).
Claim 13
Dependent Claim
40 words
The vehicle (10) of claim 10 wherein said retaining means (36) includes plates (37,38) releasably attached to opposite ends of said track roller frame (13) to at least partially overlap the opposite ends of each of said wear inserts (34).
Claim 14
Dependent Claim
29 words
The vehicle (10) of claim 7 wherein said recoil system (19) includes a fluid cylinder (20) and wherein said slider assembly (29) is connected to said fluid cylinder (20).
Claim 15
Dependent Claim
135 words
A track-type vehicle (10) comprising a chassis (11), an undercarriage (12) including a pair of track roller frames (13) mounted on opposite sides of said chassis (11), an endless track assembly (15) mounted on each of said track roller frames (13), a track idler (18) having said track assembly (15) entrained thereover, and a recoil system (19) including a slider assembly (29) slidably mounted for fore and aft movements on said track roller frame (13) and having a pair of downwardly extending brackets (41) rotatably mounting said track idler (18) therebetween, a pair of elongated slots (31) defined internally on said track roller frame to face inwardly towards each other, and an elongated flange (35) formed on an upper end of each of said brackets (41) and slidably mounted in each of said slots (31).
Claim 16
Dependent Claim
135 words
A track-type vehicle (10) comprising a chassis (11), an undercarriage (12) including a pair of track roller frames (13) mounted on opposite sides of said chassis (11), an endless track assembly (15) mounted on each of said track roller frames (13), a track idler (18) having said track assembly (15) entrained thereover, and a recoil system (19) including a slider assembly (29) slidably mounted for fore and aft movements on said track roller frame (13) and having a pair of downwardly extending brackets (41) rotatably mounting said track idler (18) therebetween, a pair of elongated slots (31) defined internally on said track roller frame to face inwardly towards each other, and an elongated flange (35) formed on an upper end of each of said brackets (41) and slidably mounted in each of said slots (31).
Claim 17
Dependent Claim
30 words
The track-type vehicle (10) of claim 13 further including a channel-shaped wear insert (34) mounted in each of said slots (31) and having a said flange (35) slidably mounted therein.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-09-26 | 1987-03-28 | 1987-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-09-26 | 1991-03-28 | 1991-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-09-26 | 1995-03-28 | 1995-09-27 | $7700.00 | Window Closed / Lapsed |