US3958837A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Idler
Assignee: Komatsu Ltd
•
Filing: 1974-07-02
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Granted: 1976-05-25
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Expires: 1994-07-02
Abstract
Abstract An idler for use in a bulldozer, etc., comprising an idler proper having an annular groove on its peripheral surface and a shock-absorbing member fitted in said annular groove. Thus the shock-absorbing member can be made sufficiently thick to minimize impulsive noises during operation.
Inventors
- 👤 Chikashi Chagawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:35
CPC Classifications
B; B62; B62D; B62D55/00; B62D55/08; B62D55/096; B62D55/0966; B62D55/30; Y; Y10; Y10S; Y10S474/00; Y10S474/901; Y10T; Y10T74/00; Y10T74/19; Y10T74/1987; Y10T74/19893; Y10T74/19907
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
123 words
An idler for use in an endless track unit, comprising the combination of: a. an idler proper having an annular groove formed at an intermediate portion of the outer peripheral surface thereof, and b. a plurality of shock-absorbing member units, each being interchangeably secured into said annular groove by a bolt which is inserted thereinto and threadingly engaged with said idler proper, and each having a shock-absorbing member, a mounting plate fixedly secured to the inner peripheral surface of said shock-absorbing member and a positioning pin fitted into a positioning hole formed in said annular groove, wherein said annular groove is projected vertically beyond the outer peripheral surface of the idler proper and is bounded by side walls thereat to form step portions.
Claim 2
Dependent Claim
123 words
An idler for use in an endless track unit, comprising the combination of: a. an idler proper having an annular groove formed at an intermediate portion of the outer peripheral surface thereof, and b. a plurality of shock-absorbing member units, each being interchangeably secured into said annular groove by a bolt which is inserted thereinto and threadingly engaged with said idler proper, and each having a shock-absorbing member, a mounting plate fixedly secured to the inner peripheral surface of said shock-absorbing member and a positioning pin fitted into a positioning hole formed in said annular groove, wherein said annular groove is projected vertically beyond the outer peripheral surface of the idler proper and is bounded by side walls thereat to form step portions.
Claim 3
Dependent Claim
44 words
An idler as set forth in claim 1, further comprising another shock-absorbing member interchangeably inserted into the shock-absorbing member of each of said shock-absorbing member units at the upper side of said bolt so as to protect against the entrance of soil or sand.
Claim 4
Dependent Claim
29 words
An idler as set forth in claim 1, wherein said shockabsorbing member has at least one longitudinal groove formed at an intermediate portion of the outer peripheral surface thereof.
Claim 5
Dependent Claim
21 words
An idler as set forth in claim 1, further comprising a spacer inserted between said idler proper and said mounting plate.
References Cited (Backward Citations)
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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) | 1979-05-25 | 1979-11-24 | 1980-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-05-25 | 1983-11-24 | 1984-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-05-25 | 1987-11-24 | 1988-05-25 | $7700.00 | Window Closed / Lapsed |